REXDlCO:-'11 DELL" SOCIETA IT."U;\~;\ III ~l1'lt:II.;\LOGI." E PETROLOGIA.. 1\l~5. Vol. iO, pp. 25-H

Geochronology of Plio-pteislocene volcanic rocksfrom sou thern hat y

G. CAPALDI, L. CIVETTADipllnimcmo cli Geo6s.ica c Vulc:anologia ddl'Univcrsitio, Largo S. Marcd1ioo 10, SO)}S Napoli

P.Y. GILLOTC,emre de Faibles RadiOKtivites, G"lRS/CER, Gif-sur-\\-ettc. Fnl.lKC

AIlSTRACT. - Selected gcochronological data fromliterature for Plio-Plcistoccne voleanisln of Southernllaly lITC report~'(l together wilh II short summaryof the history of each volcanic complex.

Kry words: gcochrooology, volcanism, plio-plei.stoccne, soulhem haly.

R!ASSlr.-lO. _ Vnlgooo riportlti tbti ~oolo­gici, sdaionati dalll !elleratura, relativ,i al vulca­nismo plio-pleistoccnico dell'halia meridionale. Vie­ne llnche ripotlllll una breve dcscrizione dell'evolu·zione di ciascun romplesso vuleaniro.

Parole chiovc: gcocronologhl, vuleanismo, plio­pleislocene. Italia meridionale.

Introduction

This paper reports selected geochronolo­gical data for the Plio-Ple:istocene: volcanicactivity of Southern haly, from Roccamon·lina volcano to the island of Pantdle:ria.The selection has been made by rejectingall the analyses considered as erronoous, inmost cases by the authors.

The picture which emerges from thecomparison of geochronological data forthe different volcanic complexe:s is a strongdisparity in the number of available: datesand in the quoted precision. Ir follows thatonly in some districts is it possible to makea detailed reconstruction of the volcanicactivity and of the chemical evolution of themagmatic system through time.

Pantelleria

The island of Pantelleria, lhe type localityof pantellerite:, is located in Ihe continentAl

rift of the Strait of Sicily. Pantclleria islandcovers an are:l of about 83 Km~ anJ consistsexclusively of volcanic rocks. The mostsignificant volcano-teclonic features are:1) twO calderas of differe:nt ages and 2) theuplifting of Montagna Grande block (CoR'NETIE et al., 1982, 1983; MAHOOD andHtLDRETIi, 1983). The island of PanteUeriais characte:rized by the occurte~ ~f abimodal association of basaltic and trachytic·rhyolitic volcanism, the former being sub­ordinate. The geologic history of Panrdleriais conveniently divided into two parts sepa·rated by the Green Tuff, dated at around50.000 years (tab. 1), as a marker bed. 1) Thepre·Gree:n Tuff activity gave rise to severalsilicic eruptions, dated between 220,000 and50,000 years, producing lava Rows, domesand pyroclastic deposits. Two e:pisodes ofbasaltic activiry have been dated at 120,000and 80,000 years, respectivdy. 2) The post·Green Tuff activity consists of severaleruptive silicic and mafic episodes date:d atabout 33,000, 22,000, 17,000 and 10,000years (silicic eruptive cycles) and 29,000 andless than 10,000 years (mafic eruptive cycles)(CoRNETIE et aI., 1983; CIVETTA et al.,1984). Two mafic submarine eruptions waerecorded in 1891 in the vicinity of theisland. All the available K·Ar (tab. 1) datesare in agree:menl with the su-.nigraphy.

Jhlei

The fblean Mts. are sited 10 the southuf the city of Catania (Eastern Sicil}') and

G. CAPALDI, L. ClVETTA, P.Y. GILLOT

are separated horn Mt. Etna by an alluvialplain 20 Km wide. The Iblean volcaniccomplex covers a region of about 350 Km~

and consists of lavas and volcanoclasticproducts, largely erupted in a submarineenvironment on a dominant N-W fracturesystem. The Iblean volcanic activity ischaracterized by the close temporal andspatial association of alkali-olivine basahs,strongly silica undersaturated basanites andquartz-normative tholeiites. The volcanicseries consists mainly of submarine productsinterbedded in the upperpatt of sequencewith Plio-Pleistocene sediments and locallycovered by subaerial lava flows and minorpyroclastics. The most recent geochemicaland geological studies are reported by BAR­BERl et al., 1974; ROMANO and VILLARI,1973; CARTER and CIVETTA, 1977; CRISTo­FOUNl et al., 1981. K-Ar ages are reportedin tab. 2 and range from 5.4 to 1.7 M.a.these ages are consistent both with paleo­magnetic and stratigraphic data.

Etna

Mt. Etna (3,345 m a.s.l.) is an activevolamo consisting of several edifices partiallysuperimposed on each other. The volcanois sited at the intersection of several structu­ral trends. The oldest outcropping volcanicrocks are sllbalkaline basalts mainly eruptedat the southeastern and southwestern marginof the present volcano. The initial suba!kalineactivity was followed by the eruptions ofalkaline products mainly hawaiites and mu­gearites. The products of the recent acrivityconsist of silica-undersaturated rocks. Oneof the main morphological features of thevolcano is the horse-shoe-shaped cllderaof Valle del Bove. Relative chronology andhistory of Mt. Etna are quite well knownthrough the work of several authors e.g.KLERKX (1970), RITTMANN (1973), KIEF­FER (1979), CRISTOFOLINI (1973), CARTERand CIVETTA (1977). Table 3 lists agedeterminations of several lava flows fromMt. Etna determined by the 2'O'J'h_238Udisequilibrium method, using internal isa­chrons for different mineral separates. Thechronological picture of the Mc Etna activitywhich emerges from the available data is thefollowing: - the pre-Etnean tholeiitic vol-

canism is presumed to have lasted until200,000 years ago; - the building ofprimordial Etna occurred horn 200,000 to70,000 years ago; the complexes of Tri­foglieno and Mongibello formed between70,000 and about 50,000, and between50,000 and 14,000 years ago, respectively.The present Etna has been forming since14,000 years ago. As the reliability 2~O'fh_

23SU dating method has recently been que­stioned (CAPALDl and PECE, 1981) the useof an independent method of dating wouldbe very desirable.

Aeolian i81anda

The Aeolian Archipelago consists of sevenislands entirely made up of volcanic products.It constitutes the emergent part of a complexarched structure located in the Southern Tyr­rhenian Sea along the inner margin of theCalabro-Peloritan orogenic belt. The eruptedvolcanic products show a range of compo­sitions from calc-alkaline to shoshonitjr.

Lipari

Lipari is the main island of the AeolianArchipelago; it has an area of about 38 Km2.The outcropping volcanic rocks represent atypical cal<>alkaline suite from quartz­andesites to rhyoliles. Four periods of vol­canic activity have been distinguished onLipari (PICHLER, 1980). K-Ar and fissiontrack dates of Lipari volcanics are reportedin tab. 4 and 4 a, respectively. The chrono­logical data show that volcanic activity startedabout 150,000 years ago with eruptions ofandesitie lavas and pyroclastic deposits andcontinued until historical times, as testifiedby archeological data.

Vulcano

The island of Vulcano is the southernmostof the seven islands of Aeolian Archipelagowith an area of 22 Km2. Together withStromboli it is the only active island of theAeolian arc. According to ICELLER (1980)the volcanic activity of Vulcano startedduring the Upper Pleistocene with the for­mation of the large shoshonitic strata­volcano called «southern volcano» or

GEOCHRONOLQGY OF PUO-PLEISTOCENE VOLCANIC ROCKS ETC. 27

« old volcano ». The collapse of this volcanoformed Caldera del Piano which was thencompletely filled with pyroclastics and lavaflows of intracaldera activity in which shosho­nitic basahs and leucite bearing tephritesalternated. During the Upper Pleistocene,rhyolitic and alkali-rhyolitic lavas formedthe Lentia mountain group. Later a furthercollapse formed the caldera in which thecone of Fossa di Vulcano developed. Theactivity of Fossa di Vulcano produced rocksranging in composition from leucite-tephritesto high-K tmchytes.

During historical times eruptjve activityhas occurred at both Fossa di Vulcano andVulcanello. The most recent eruptive episodedeveloped at Fossa di Vulcano from 1888to 1890 A.D.

K-Ar determinations are reported in tab.4. 1bey include an age of 112,000 a.b.p. forthe «old volcano _, an age of 99.000 a.b.p.for a lava flow belonging to intraca.ldemactivity and an age of 8,600 a.b.p. for theFossa di Vulcano.

Stromboli

Stromboli is the northernmost island ofthe Aeolian Archipelago and the only onewhich is presently in a state of pe:rsistenlvolcanic activity. 'Ibis island covers an areaof 12,2 Km:! and is wholly made of volcanicproducts. The subaerial part of Strombolihas been built up by two main cycles ofactivity. During the nrst cycle a rhytmicsequence of pyroclastics and lava flowsformed the southeastern half of Strombolivolcano and the islet of Strombolicchio. Theactivity of the second cycle was mostlyeffusive and occurred from central andparasitic vents located in the northwesternhalf of the island. K·Ar and 2S0Th)/3SU agesare reported in tab. 4 and 4 b. The K-Arages range from 66,000 to 5,000 a.b.p.,whereas the :!s&fh_2s11U dates fall between156.000 and 3.5,000 a.b.p. The oldest agesobtained from using the two methods relateto the La Petrazza lava flow, which belongsto the oldest formation outcropping at Steom­boH. The significance of the disagreementbetween the two results is not clear at themoment. The products of Stromboli activityshow a temporal evolution from calc-alkalineto shoshonitic.

Sa/inaSalina (26.75 Km:!) is the second 11lrgest

island of the Aeolian arc. According toKELLER (1980), during the last 0 ..5 M.a.many volcanic edifices were built up. Theproducts are dominantly high-alumina basaltswith minor dacites and andesites. A longperiod of repose led to partial destructionof these edinces by marine erosion. Duringthe last glaciation volcanic activity resumedwith the formation of the 860 m andesiticcone of Monte dei Porri. and ended withthe formation of the crater of Pollara.

K-Ar age determinations are reported intab. 4; they range from 43.5,000 to around60,000 a.b.p. The first date relates to Mt.Rivi, which represenls one of the oldest ofthe apparati of the first cycle of activity.

The youngest reported age refers to theMOnle dei Porri activity.

A/icudi

The island of Alicudi represents the sum­mit part of a huge composite volcano largelysubmerged. According to VtLLARI (1980)this part formed during four successivevolcanic cycles. Eruptive products consist ofpyroclastics, lava Rows and domes. At theend of the oldest cycle, which was mainlycharacterized by effusive activity, a largecaldera formed; later, it was filled byproducts, dominantly pyroclastic, of thel'ccond cycle. A volcanic depression deve­loped at the top of the second cycle volcanicpile and was partly filled and obscured bydomes and lava Rows of the latest volcanicactivity. The composition of the volcllnicsvaries from basaIts 10 high.K andesites.Available K-Ar dates for Alicudi activityare reported in tab. 4.

The oldest age refers to the first cycleGalera volcanic complex; the youngest onerelates to one of the latest episodes ofactivity.

Filicudi

The island of Filicudi is the summit partof a complex volcanic structure. This islandis characterized by several volcanic centersconsisting of strato-<:ones and endogenousdomes (VILLARl, 1980). The eruptiveproducts range in composition from basaItsto high-K andesites.

28 G. CAPALDI, L. CIVETTA, P.Y. GILLOT

Only one K-Ar age is available for Filicudi(lab. 4); it refers to one of the oldest for­mations oUlcropping in the island, giving avalue of 165,000 a.

Aeolian 8etlmOunt8

Table .5 reports K-Ar dates on lavafragments dredged during t~ 1972-79RjV Bannock cruises on the submergedpart of the Aeolian Islands and on Sisifo,Enarete, £010, Lamentini and Aldone sea­mounts.

Lava samples (basalt to rhyolite) dredgedfrom these seamounts belong 10 the calc­alkalinc-shoshonite association and arestrictly comparable to subacrial productsoUlcropping on the Aeolian Islands. Theavailable geochronological data indicate thatcalc-alkaline magmatic activity started 1.3­0.9 M.a. in the westernmcst sector oE thearc (Sisifo Srnt.), whereas the oldest shosho­nhic volcanism so far found at Eolo andEnarete Srnt. has an age of 0.85-0.64 M.a.

Vulture

Mt. Vulture is an isolated strata.volcanolocated on the ~stern side of the LucanA~nnines (120 Km E of Naples). Thisvolcanic C(:nter is on the edge of a deepand recent tectonic depression (BrndanicTrough), which separates the Lucan Apen­nines from the stable platform of Apulia.According to HIECKE MERLIN (1967) andDE FlNo et al. (1982) the lowermost productsare phonolitic-rrachyric ignirnhrites withminor extrusions of phonolitic and phono­litic-trachytic lava domes; the intermediateproducts are tephritic pyroclastic df'positsand uppermost products are a thick seqllf'nceof lava flows and minor pyroclastics forminga central volcano of tephritie and fl)iditiccomposition. The last eruption producedsurge deposits within a collapsed c~ddera.

The main activity of Mt. Vulture ':overs atime span between 0.83-0.5 M.a. (t3b. 6).

Somma·Ve8uviu8

The Somma-Vesuvius volcano is locatedeast of the city of Naples. The volcaniccomplex consists of an old sttato-volcano(Mt. Somma) with a summit caldela in

which the active cone of Vesuvius de­veloped. The activity of the ancient McSomma is divided into eight periods (DE.LIBRtAS et al., 1979). At least ~ven

p1inian eruptions have been dated in thelast 17,000 years with an average returnperiod of the order of several hundredor some thousand yeaI1. Typical productSof this activity are pumice deposils rangingin composition from phonoJite to tephrile­phonolites. The products older than 17,000years are both ttachytic and tephritic incomposition. The recent activity nf Ve­suvius started probably after the eruptionof the Pompei pumice 79 A.D .. It ("(JnllistSof leucite-bearing rocks {tephritic-leudtilesand leucititesl. The tables 7 a and 7 rf'portliC and K-Ar age determinations so faravailable for the Somma·Vesllvius volcaniccomplex. All the d:lla are in agreement withthe stratigraphy. Tllb. 7 also reports a K·Arage determination for a sample drilled atthe Trecase locality, between Torre -le! Cre­co and Pompei cities, which represen~s theoldest dated volcanics of the area.

Ischia

The island of Ischia is located at theenuance to the Bay of Naples, southwestof the city of Naples. Tt consists mainly of avolcano-tectonic horst (RITTMANN, 1948)made of a pumice Row formation (GreenTuff) dated at 5'.000 years (tab. 8). Thebeginning of the volcanic activity at Ischiais dated at around 130,000 years (tab. 8).Since then many volcanic centres were activebefore the Green Tuff eruption. The m!ljorpart of this old volcanic complex has beeneroded and has disappeared following ateclonic collapse and the Green Tuff eruption.Later, pyroclastic products were erupted(Citara Tuffl. This last episode predates theuplifting of the Mt. Epomeo horst, up to780 m a.s.1.. The formation of the hotStwas accompanied by volcanic activity at itsperiphery during the past 30,000 years. Thechemical composition of the Ischia productsranges from olivine latites to potassic alkalitrachytes. the latter being dominant. Theisland of Ischia was active in Greek andRoman times, the last eruption OCC'Jrn-d in1302, giving rise to a sodalitie alkali uachyticsmall spatter cone and lava Row (Arso lava).

29

Appendix

K-Ar dates reported in this paper andpublished since 1981 together with resultsof SELL! et al. (1977) have been calculatedusing the constantS recommended by STEIGER.and lAGER (1977): (.woK,) = 4.962 X10-10 a-I; A(40Kt) = 0.581 X 10-10 a-I].The older published ages have been calculatedusing either values of 4.72 X 1O~IO a-I and0.585 X 10- 10 a-I for ).~- and M. respecti­vely (BARBER! er aI., 1974; GASPAllINI andADAMS, 1969; CoRTIN I, 1975; CoRTINI etaI., 1975) or a value of 0.'85 X to-ID a-Iand 4.612 X 10- 10 a'l for M. and ).t!­(GILLOT and VILLARI, 1980). For theother reported K-Ar ages there is no indi-

GEOCHROr-;OLOGY OF PL1G-PLEtSTOCENE VOLCANIC ROCKS ETC.

composi[(: volcano sited at the intersectionof two fracture systems related to post­Miocene distensive tectonics: the Apennine(NW.SE) and the Anti·Apennine (!"JE-SW)systems. It is the northermost volcaniC centerof Neapolitan region, and covers an area ofabout 300 Km:. Roccamonfina volcano hashad two main eruptive cycles, sepa!l\l:,d byIhe formation of a caldera. The first cyclewas characterized by the eruption of leucitebearing rocks (High-K series), compositio~al­Iv vcrying from leucitites to leucite-phonohtes(ApPLETON, 1972), and by the building ofa fairly regular strato-volcano. The pos~­caldera products, less important qu~nlltat1­

vely, consist of leucite-fr~ pyroclastlc r~ksand lavas (K-series), whose compositionranges from trachybasalt to lrachyte (Ap­PLETON, 1972; GHIAJl.A and LIRER., 1977).K.Ar dates of exposed products (tab. 11)indicate that the construction of the strato­volcano, presently about 1,000 m high,started about 1,5 million years ago andlasted until about 350,000 years ago.However uncertainties exist for the oldestdate (1.5 m.a.), as it was obtained on avolcanic bomb. The second stage of activitystarted with the White Trachytic Tufferuption, dated at around 300,000 yea~s.

Subsequent eruptive aclivity was primarilyconfined 10 the caldera and its margin, givingrise to a series of lava domes and minorvents with related pyroclastics. The activityof Roccamonfina concluded before the de­position of the Grey Campanian Ignimbrite,dated at a.houl 30,000 years (labs. 9 and 9 a).

Roceamonfina

Roccamonfina is a Pleislocene.Recent

Procida Island is located in the Bay ofNaples. It lies on an important Ant.i-Apen­ninic fault. This fault extends through thecontinental volcanic area. The volcanic actiovity of Procida started at aroung 40,000vears B.P. with the formation of the Vivararone. Activity on the island was mostlyexplosive, with prevalent hydro-magmaticcharacter. The most ~nt eruption is datedat 14,000 y~rs B.P.. The chemical compo­sitions of producls range from rrachybasalt10 alkalic-trachYle. All the age determinalionsof the volcanic activity on the island havebeen by Ihe HC method, on paleosols andin one case, on carbonized wood (tah. 10).

Procida

Phl~graean fields

The Phlegraean Fields north-west of Na­ples a.re an area of a.ctive volcanism, mostlycharacterized by explosive activity. The olclestactivity of the area is dated betw~n 45,000­35,000 a.b.p. (tab. 9) with formation ofpyroclastic deposits and lava domes. Ataround 33,000 years the eruption of theCampanian Ignimbrite has been dated bothbv HC (tab. 90) and K-Ar determinations(tab. 9). Between 20,000 and 10,000 a.b.p.the eruption of «Tun Biancastri Strati6cati*,tlTun Antichi .. and Ihe tl Neapolitan YellowTuH.. occurred. For the Neapolitan YellowTuff a slight discrepancy exists between theK-Ar age (1:5,000 a.b.p.) and HC agesgrouped between 12,000 and 10,000 a.b.p..The activity of the last tO,OOO years hasbeen mostly dated by uc method on paleo­sols and carbonized woods. The most recentt'ruption occurred in 1538 A.D. with theformation of the small pyroclastic cone ofMt. Nuovo. The chemical compositions ofPhlegraean volcanics range from trachybasalt10 alkali-tfachytes and phonolites, the formerbeing largely subordinate. Selected biblio­graphy on geology and geochemistry ofPhlegraean Fields are: DE LoRENZO, 1904;RITTMANN et aI., 1950; ARMIENTl et aI.,1983; ROSt et aI., 1983; DI GIROLAMO etal., 1984.

30 G. CAPALDl, L. CIVETTA, P.Y. GILLOT

cation as to the values of the constants usedin the oriRinal papers.

The carbon-14 age determinations, havebeen calculated using the carbon-14 half-lifeof 5.568 ± 30 a. when Ihis has beenspecified in the original papers.

Abbrevialions used for analyzed materialsare the following: w.r. = whole rock;gm = groundmass; gl = glass; Sll = sanidi·ne; kl = k-fddspar; le = leucitej Id! =fddspathoid; hi = biotite; le mer = leucitemicrolites; pi mer = plagioclase microlites.

TABLE IK·Ar dales of Pllntelleria volcanic!

l.o<.u., • ~ oo.e.,od. ••to••"".'ook " .. "_" "0. ..,.. '01 .. , ....~. ...'0'),.. (oll•• '0 I ,.. (,,~..

"""'" ..ll. SOU... '","'''or'", lie ll7 p •• t.M> 3," '''''_0 ! n.o '"3 .... '." :12,.0: ".0 ,.,

......... hll...,""or....IIC ". P ...' '.no ,. 2U.O: •• ,.,

..- I ..... 207.0: ... ,.,_ .. h' <>or<'a"'" -" '" ," p ... ..- ,. 'n.o: ".0 ,-,

0.'" ,.~ "S.D , 's.o ,-,.....,...' eo. lie "no • ,.00 0 ....' ..~ '20.0 : '0.0 ,-,

o.•~ '.M "~.o • ... ,-,eoll..." ..... lie >10 p ,.. 0.'" ... ".0 : >. ,-,

o.'u >. N.O. >. ,.,_"'h,M" .....,.....,..

lie '" " '.. ,- ,.. "'.0 : •• ,-,P '.M O...S ,.~ ...0 ~ ... ,.,--- ." • " SoD' 0 ....1 ••• ....Cl : •• ,-,

D.S,S ••• c.o • ... ,-,_ ... u-... ." • " '.00 ..- '.M ...-. : ... ,-,--- "-" ... M " ,.. ..- •.u M.' , '.' ,-,

..- 2.11 >S•• : ••• ,-,SorT••, 01>1,1_ _""or'" '" '. " ,." D.'" '.00 )2.S : ... ,-,

D.'" ,.~ 3'>.' : ... ,-,_ •• C'"'' Tn.h.... ." ,.

" 'M ..- ,.S' ".. , ..• ,-,_u " ..I. .r..,...... '"

,." •.M 0.:10' .." ".0 : '!.D ,-,

CIod<Ou •• , -.. "_" S'C ,C•• p 0 .•5 .- •.oo 27.0 : ,.> ,.,0, III •. oo ,~.O : ".0 ,.,

!"unt.........00 '",. p '.00 e.07) O.~. 21.0.20.0 ,.,.- ... 3D.S , ".0 ,.,

........ <SoJl. k.l. I,c 'OS p •.U ..- 'M >e.O : '.' ,.,..- ,." V.S • •• ,-,

........ ..11·01•• • .,...11•• , ... ." ». " >M ..- ..oo 26.0 : '.' ,-," '.M ..- .~ >1.0 : ,.> ,-,

_ ........ k'_' .., • " .... O.~l •. oo 11.' • ••• ,-,..- 'M 'S.' • ••• ,-,-,..,..- ." • " '.M 0.1. ... '_f • ... ,-,G.... 0.» S.~ : >.• ,-,

(I) = CIV£1TA ~t al., 1984.

GEOCHRONOLOGY OF PLlO-PLElSTOCENE VOLC ....NIC ROCKS ETC. 31

TAilLE 2K-Ar dales 01 Mt. Ib/ei [avas

...."., ""..,. ••aD. •""".Il,>, _. T,po -" ... ""n,. •• ..,."'''''.,,, (.11. " '0"'1 ,,, I,.."•• '°01

In'''' __ ,"'50'''-'1 .,•• Il ....... " ,.. 0." ".00 , , ,.,. .0.37 '"

U"Il''''''X, ,....".....1 -,."", ...." " ,. 0.'00 ,. ... '.M ,0." ,.,l"'oo' U'"'. ".,.,...,.." 'I'.".......tt ". ,.., p.1I I'.> >.M .0.13 ,.,("- .. ,,.,..x, """"-'1 .,... , ......It " ,. •• It. '"

.., 2.••• 0." ,.,("-'0'''''-'. ,...,.".., " ••Il......" t. II ... "M "., Z."",O." ,-,("-"'''''-', "·"""-'1 -,,,,,,, ...." '" o.,ot '0 .., 2.'" ,0.20 ,.,("-,,."'-.. "'50'~-'1 _""<l' ••.•It '" 0. "7 ,.. ,., 2.20 • 0.00 ,-,(17-"'''-'. ,,-.,. [7-'1

"'''''' ....It " " 0." '. .., '.",0.0' ,-,(17-'0'20""'. ,···.·,.".1 " ••Il......tt '" ..• •. 0, ,. t."'.o.,o ,-,(>7'",,,-,. ,....·'.....1 .,••u ......" t. 17 0.002 '.71 ,.. ,.71 • O.JO ,-,

/I) = BAJlBf;Rl el al. (1974).

TABLE 3

'!:30Th_23l>U disequilibrium dates of Mt. Etna vu/canics

I.-o<oll ty Rock Typ. Sup" "0. ... ~.f.renc.

(y ••r. x loJ)

~

'"SSW .... of hU"",'o Alk.ll_.....lt 62JB '" ~"nee""

Cy~U-p.. IOI.nd. Alk.ll_....lt. ."(th'''' ...f ooulll of I.v. n- o. ". (")

"r ....l1on. Gund.)

" ,-,rh,p. S .•...,I. ru~hy•••• l t. l"3a '" "'.v. n-o, N<l.d.llo '"

U(")..."oItlonol 1443

"H"otto. lov. n_Contr.do M.laullo trochy.uolt. ,~

, ,-,,M'(3R. SSW of Biotlcovill.) 0

l.v. n"",

napo S.Cnorin. " " ,.,r ..ohy....lt, D.0

lov. n"", , ,-,B... of n.po S.Cot._ TronoiUon.1 1611 " •ri~. otnoite, l.vo n_ , ,-,r ..noiUon.1 '"- 1612 .. •1011«, lava n"", .. • (")"'. vOlObOhrl T..".!tion.1 1620 •o<noltlc pe•• lo

00 " (")napo S.Cotuino ...c~...olt, ,~

HI t""J lov. n"",

•• ifo&li<tto ...chyond..it•• 'M 65.a~ • • (")

(CO.....lon. doll. rO&ll.l) lov. n_

o, ,. T"chy.ndoolt., "M M <., (n)

l.v. n_ .. " ,-,Trlfo£ll<tto T..ohya,o<lult<, "" "(C.nolon. doll. !OUI , lovo n"",~,

Voll. dol Bove Tr.~hyto, ,~, 14.5 ,-,l.va n_

(1) = CoNDOMINI!S " aI., 1982.

{ll = GllLOT and VillA-RI, 1980.

GEOCHttONOLOOY OF PLlo-PLEISTOCENE VOLCANIC ROCKS ETC. 33

T .... BLE 4 aFission 'rack date! 0/ obsidians

from Lipari Island

TABU: -t b~30Th_"'!a~u Jiuquilibrium dates

of Stromboli volcanics

(11 = BIC,4.ZZI .00 BoN,4.DONN,4.. 1973.

,....,.......,.-"....

••< )

'-, ­"._. ,...

"'.-..... ,...lIt, -- _loo.. •. , ..,...-.I...... '0 ,

........... ~ " o. ..'"'"

...,._,.... -.,... n.. ,_,-, -'-'-,-, .-.......... "'_.0-.-,'" ~. ........ ,-,......... _to.,-........... ......-,...-, .. _... ...,... _,... ~. • ",-,- .... ,... ..----.....-'"'"-'"

(1) = CONDOMINES, 1980.

TABLE 5K·Ar dates 0/ volcanics dredged from tb, Eo/ian uamounts (Tyrrm;an Sea)

....,." -," _10 .....""or'" , 00.., ......... 00........... ~ ...."""'",.. l.l/•• '0 l ,.. I....... 10'1

S'.l<a ..,. l;o.l••lk.ll......a T7WI. w.,. 0 .•2 <1 .• 01.' c ... m17'&/21'/31>' ..• .., '0.' " ! 0.7 ,-,.......27/ .. 0.>1 ,. ,.. ... ~ 0.3 ,.,

N'.............U .. T~U~ ....... '.M .., '7.f 0.60 ! 0.01 ,.,__.. Soo'_

_.ne,I~I'" ,. M ..' 0." ! 0.01 ,-,""'~I~ ,. ••• n.' 0.'7 ! 0.01 ,-,-~-

,.. .., ••• 0.77 ! 0.00 ,-,.. 7.l' .., '"." 0.73 ! 0.00 ,-,_I.,._n """,07/.. w.... ,,, ••• ~., O.R ! 0,03 '"r.1...... _It............. T750fo"h ,_0, ".2 IT., 0.77 • O,O? '"_...,.. -" nwo"k 2.02 •• • •• o... ! 0.00 ,-,-'. nwol/... l.~' !l.' •• 0.711 • 0,00 ,-,

"",o"'J ,. '.' •.. 0.7•• 0.OS ,.,_.. ,........ "_ "'01>..,1 _'to Tn/I&/.. ,.• '0.7 .... 0./10 ! 0,01 ,-,_""~I -,... -,. Tnll".. ,. ,.. n .• ..... : 0.1» ,.,><-~II-- CaI••lk.oI .... _, .. 1"11/11/10 ,.. ,.. ~.. ..."" • O.ll:I ,-,

Ill::: Bf.CCAl.UV" et aL, in press; (2) = C. S"vELLI,personal OOInunicallon.

l4 G. CAPALDI, L. CIVETTA, P.Y. G1LLOT

TABLE 6

K-Ar dales 0/ Aft. VI/lture volcanics

• ...·71..

'"oo.,.'od.

'"~ ,

(,...... 10 )

T_,_ ''''0 ......." ... ". ,.. »-"" .. O.M • 0 .•' '"(_.....~.", "",..,..!! - ,. ".0' o.a. , 0.07 ,-,.. ,t> "-_... " " .. • 0.• ,-,1_09,.,"11. "12'0-',fl_ ••It,. T, ..",«, .." ".2' " 0 .•' • 0.'" ,-,I"'" M' 00-11 • .... ' .."., .'''''''

•• •. 13 " .... " .... , C.N ,-,__ ., C...."."'_li' T.....'lt•• ,. ,. " 0 ..... 0 .•' ,-,1'.''''00-'. ""'2'''<) !o.o n ..

0... c 0.0. ,-,c,.. VuHurt """"to, "

,_,7 " 0." , 0 .• ,-,(..,.~...,.". "IO'..,..!! I... 'I.,.

,. 0."> ~ •. 00 ,-,

(I) "" CoRTlNT, 1975.

TABLE 7

K-Ar dates 0/ Somma·Vesllvius volcanics

"ocl.1'1..

'"• 'r.•".

'"

Trooo_ "''''''' """,'<le U21 '." ,. ,., ~ , • '".- ,. ".0 = -• ,-,CO"1,_B"" Drll'.. I ••• • •.os 0.'• ,.. 32.0 , " ",

0." ,. '0 29.0 • '., ,-,""'''"''0 ., C'''o''''o T.....'H'..... " • •• O • LOO 21.2. '.0 ,- ,

flo_

0." 1.2' ".7. '.0 ,-,1, ..... ,..It ,.. ,. '!O••• '.0 ,-,~I ••,.. ,. o. 0•• >0,2 , ••• ,-," I •. '; ,~ • ,g.' . ,. ,-,

,.. " It.Q ,2_' ,-,

0) == BERNASCONI et aL, 1981; (2) = CASSIGNOL and GILLOT, 1982.

GEOCHRONOLOGY OF PLlO-PLEISTOCENE VOLCANIC ROCKS ETC.

TABLE 7 aHe dates 0/ paleosfJls and carbonized woods intercalated

in the Somma-Vesuvius volcanics

35

Loc.lI ty D.t<. E",p""" 5_pl.Oo. ........1 -,. ••for.,.,,'(r'u, D.D_

~" ·Codolo ......,e.· 0_935 p.'....." l~.'OO • .000 '"l'lO"O.·""H. '0''''3'"<)

_"'_'.n of S-_v.."",". "e...1 p_'co· ~.. ,. \?D~ ~ '" '"...11_ .f 'equ.'__ ......, """00- '_'D~ IO.~ ~ ,. '"......,.,-""",.... """'n'*" """00· ~.~ ".>DO ~ ,~ '"s.o...'~_hot of 5.'0••"".10 ". ,. 14.0"" : '00 '"ca•••••••cl. 10..,.... "CO_ •••ndo'or. P'ua.lc." ,~~ ll.eoo • ,. ",laO""."~7"H. "'1".,,,.)

,-~ n .•"" , • ,-,_'h_'.., of S.......... Pf51r «. 1l.'00 ~ '" '"••ot of Ott",""" -Oerooto _,co- ~. '" ~70 L '00 ,-,

I"",... ,.... 1

...."'.to """,••" ~. '" 79'•• ,. ,-,'a»c", .....1

C.v. d.'1·'rolp••,. -"O'••to _'co· ._931 ,~ , • '"140· .. ·U-O. """"l"l'

S.T......ll. 'ct'.ltr ."'."n ~ '" ~':lO , • '"...v.lh"".. -....r ••to"

.It.vU.. lro''''' -...Il'"" ......'co· 0_9"0 'J-40 ~ • '"''''OO·''''-H • .. • •• ·0]·.)

C.V....1· ...<10'*.. -av.ll'"" ......'00· "_9:111 .~ • ,-,(00'':'',0''0. """""['0'...,.". prsv ". 3'60 , ~ '"P"'allono d""'c -ov.ll'"" P'ua.lc.· '.- P.l..,.oll 3610 ~ • ",(40''''''0''0. "'l,'~"'l

R-ll:lO. '5'0 , • '",_'" of .,. Vu",,,", e.", ••o P_I ,. prsv )DO ,5]0 : • '"....Uoo .oqao"".

T''''ana ~.,. -, • ,',

v... of O'u""" PrSV >l' l'S<l ~ = '",....."'-..., of S ......tool • '.D_ 70 " ......," •• ,~ C...boo,..d 18'0 ! • '",,-~ 'M leoo , ~ '"S<o>th_h.. of •• 50...."..,., ~_?l5 ,-" • '"(00'09' 45"«. 14'2,,_£,

....,.. ....0401.,. '.D_ '12 "Poll.",,· PrSv e6 "00 , • '"Cov...U·'<o,o,.... "_939 p.'..-oll '810 : • '",......1]"". """'l"EI

"- " Poll .... frsV "' Corbooh•• .000 ! ~ '".-..........._1... Pr'V _ .SIIO : • '" ,ca... T"~ll"" prSv >06 1'O,._il 1~S<l , ~

,,,"- " Poll.o. '.D. '8'? ." '" Corbon.... 'leD , • '"--La___10.. prsv _

10SO : .. '"w.., of .'U,'.". '.0. '63" ~,- P"..-oll -~ ," ",I.",• .., Poll ..... and 1'1"50 3'~ Co'_"'" ,~ , " ,-,C• ...,ola --(I):: ALESSIO ct a.l., 1974; (2) = DEuBRIAs et aI., 1979; (3) = ALESSIO C{ aI., 1978; (4) = ALESSIO etaI., 1971; 0) = ALESSIO el aI., 1973; (6) = ROSl ~ ShNTACIlOCE, ill press; (7) = Rosl e SANTACROCE, 1983.

36 G. CAPALDI, L CIVETTA, P.Y. GILLOT

TABLE 8K-Ar dates "I Ischia volcanics

'-<>eo"'"., .,

"",," Ty... 5_,. 1<0. • 'ud.l • ....... M .••• _ ••10

31

-.,..,....-. I,.... 0'" t.1/•• I. I '"

C.".ll•• 'Io,hI. ""<I,,, h., H_ ,. '" p 5.•' ,.., ".02 132.• , " n,-- 'ro,""", H_ $." ,.. n .• ''''.0 . ... '"2.72 n.o 1>••• : •• ,-,

"' v.... "0<""" fl", - $." ,. ':<16 1211.0 : •• n,.,"".."". ....,.."" H_ .. '" • ..• ,.,. ," m •• ,-,

,. ,.., '" •• ,-," .. ,. '.1> •. '9 "'.0 . •• ,-,

~" '_r..~r. 'r..,"'''' I ••• H_ ISH III P 5." ,.. '.9' l\1.O : ,., t'.1

'"' "'••••• of",. ,l>rn

2.72 >3.9' " •. 0 , ,. ,-," .." ,." ,.-" "... : " ,-,

,.. 2•. >2 1>3.0 • " ,-,• , .... ",",<0 1<0<0"" h'"". ,.- - • ... ,.u ... 'n.•. ".0 ,-,

<lud,d '" "'. Oro,n'.ff," ... ..... : •• ,-,

• A<>&,'a ""'''''- ,. ", 5_" 2," ,.. .... 0 : "0 ,-,,., <h......f

"'. _tl

,.. ,. lOO••• ... ,-," •• ,. •• l7 ".0 : ,. ,-,

.... So-~ ...u",_ ." • '.1I •• l •.n ?.O : •• '"IX,. "".1

" $. Xl 1.02 ".M 7'_. , , • ,-,,. l •.~ 76 •• : , , ,-,, <"0'., "oar "'" ,",,,, Tro,,,, .. ... ,. '.» ,. .... 7 : ,. ,-,

'OO Or Kt. '- Or..n Tuft

•••• J . ., ".' , ,. ,-,',lg L' "'.0 , .., ,-,

". ,_. r..' - ""10 T,,,,,," .,. t.~l 2.10 ,." ... .. : ..• ,-,~r<.~ Tuff

'1.". ok" ·..qu. Al,." T••...",. ,s>! ,,. • '0.'0 2.07 ,.. .. .-..• ,-,o...~ Tuft

,. '.0' ....? : ..• ,-,C"HQ "0<10"10 To" ,SI< ., ,. O.t, 3."' 3<.5 , L' ,-,

'M ,.. "'.5 • .., ,-,0"""," d.l 110"""" Tr.,,,, "< I... " OM '.M L" ., 0,., ,-,.. t ...... Q' o. n_ell"

,.. LM >g." • ",-,

LM L" XI.3 : ,. ,-,......".. T",,,,,,< I••• ". 'M 0.11 'M 2).1 • , '0'H_

'M ,. n,~ , ,-,

(I) = GILI.OT et al. (1982); (2) = CASSIGNOL and GILLOT (1982).

GEOCHRONOLOGY OF PUo-PLEISTOCENE VOLCANIC ROCKS ETC. 37

TABLE 8 (tontinutd)

l.eull~ -- _I.... ..._.01 • • .0<1......... • ..r.._...........'" e...... '0 1 '" er..... • '0'1

Sol.....1_",- ~,,< I... " ... M' " '.N 0.21 '.N 10.2: I.' m0.1' I. I? '.0 : I.~ ,-,0." ,.M 7.6 < l.2 ,-,

" >." •. N ... 10.•• I.~ ",'.N '.M lO.~ : I.~ ,-,_... .,...,..

.......... n_ M' " •• ••• '.N '.' : 1.6 ,-,0.11 ,. ..~, ..~ ,-,,.. 0." '.0 : '.0 ,.,

" .... 0.11 ,.. '.' : '.0,.,

0." 0.47 ~.. : ..~ ,.,._ ""'110 ' ••••,\,<" ,,_ M' " 'N ,.• '.N l.0 : .., ,.,

0.01 ,.. ,-. : , , ,.," •.n 0.01 O.'~ 1.0 : ,.,

,.. ,." 2.0 : ... ,.,

11) = GlLLOT el al. (l982); (2) = C.4.SSIGNOI. and ClI.LOT {1982l

TABLE 9K-Ar Jaus 0/ Phltgratan FittJ voicanics

-- •.., • ........=..10.11,. '0 I

.0<1........

'" • •I......... '0 I

• ., .....,.. ,,"""",.. _..... ... ,." .., ,..~ : ,.. 'u(I...,_~, V....'_l ...... ,..". u .......

-"'N '.' ".2. , ,-,- .........,.- " ,. '.N '.' ".0 • , ,-,0.'1 .., ".5 • , ,-,

5.'"" .., 0.,. 'roe>". .. 11_ '" .N ,., ..... .., ,.,c_.oo '&n,_I,.

.M ,., U_ •• .. ,-,.. " >;l.' :"

,.,• 1........ '.oeO$" . ....",., 1.17 ,.. ,., !IO_. : ., ,.,-,. _.. ......... .._11... .. '0 .... ,." ,. "., : 0.' ,-,

10"_ •• t(

'.N .., ,~-. : ,. ,-,'.M ,., ".1 : 0.' ,-,

". 011_ t ......"<_ .. .O.'!O 0." '.' '.1 • 0.' ,-," ,.. 0 ... ,., '.0. ,.. ",_. T._,,<_

10.~ ,." ,., '.2 • 0.1 ,-,0." ,.. J .•• 0.' ,.,

(1) = c...SSIC:'OL and GILLOT, 1982.

38 G. CAPALDI, L. CIVETTA, P.Y. GILLOT

TABLE 9 aHe dates of paleoso I and carbonized wood intercalaud

in the Phlegraean Fields vo/canics

_.1>., Do.... '"-"... -'.•. ....... '.1 ~ .,-c,....... ,_1

.......... " ,.- ........ " t._ .....10 ~ ,.1_11 ~ ....- mC-OO~I'''''''. 1.'Il'''"l)_.

"'"""'..,,e. _1,_ 1--71. ~,.-.,- ,-,c....·.·.,..". I.'OII')?"II '.. _u._<:«....... -...,. ........,..".. _",- .-~~ e..-UH "0.000 m,..,......,-.. 10·.·...iJ 'OC <»0 c_,... 1_ -an''''''-''' ._, :M._ •200Cl mc..,...11·... ' ....... e..."".." 'en''''''''' '_~1 "".....1 "0.000 '"llO'S-·U"•• 'O"'~""'I)

ta..., ... c."""" ... ".00!i , ,,, ,.,.-_t. d.ll. " __", ._,~.ooo , = '"("""Y"Cl"', l"U'~11

.-&11. '~.- , ,- ,-,..rl.., .. .= u._ •,- ,-,,........·w•. ,.·.t·'."I).......,.... .-- n._ , - ,-,,..,. .....y •. ,,·oa·U"t) -- .....-~ - ,-,• __.......11. c........ .- ....000 : - ,-,C.,"<I,·,....,.. 1000·,.loJ"tl

_'••11. 10,11. ~. t_.of .,000 : 2ClOD ,n1_"'lCl"1l, 10·»· ..... ' .-_ •••,h ...".

~,- '"''_''' ~" t._. of ...._~"""" '";_Y'ICl"lI. ,.-;u.!oI""t) --~ t._,J .._~ ,- ,-,-- ~,-, ,- ,-,

..11••, __11.1~1...-.......,

._, ,.1_11 ".-, ,~ '"1_~·Cll"'. ,.·u·)?"u

••11_ Lo t......-II. .- 1~,ClICl : ,~ ,-,1'0"~1·_., ].'13'_1)

...... "".., ..._Ill... ,.11... .-- 11."0, ,~ ml-OO~'_', "'I~")"EI '~fr .-- n,no , m ,-,.-- 1l.UO ! m ,-,M....... ' ...or• • ~.,.,., .-- 11.$"" , ~ ,-,1""·~'~1"". ,"17'01"1) .-- 11.110O • '00 ,-,Vh ,,.,,....,,..,. .-- '2._: ," ,-,1"""101· ........ "-'O'<l<I-El

'_50. 12."" • '00 ,-,.-- n._. '00 ,-,CoeH'"'''' .-~.. ",1I2Cl • ,~ ,-,''''·N'IT•• ,.·..·,!I"U._... "-,

,,-~ COI.. ' ......- 10,ClICl • '" ,n-

GEOCHRONOLOGY OF PLI().-PLEISTOCENE VOLCANIC ROCKS ETC.

TABLE 9 a (continutd)

39

_1.11_ d'.r<ol~·"""""H. la'~"~'"[)

......... hrr~. q".r...

(aO'!02'5'"H, """"'''<1

P.,..l.h.,., d·.r<o

I~·""'''''H. ,..".,.,.[)

Uo<>. "",.,.(~-•••••-., "'",,'n"I)

11,10 d. Qo.>... t.o

('O·"'O'"H. "'''''''I"£)

H••••". f ....... ""or,.,.I~·"'''''"N. "'!?'''.!)

_,.11.,., d'~1~·""lO"N. "'23'",,"')

_'." ..... d'''<o(.0· .... ·,0"H. "'''''''''[1Si: "a<><> dl "","rto

[ ••• of "" Sol h<Or'

N,. '.'"&<10

S1.or..

.,..... """to100""""". "-00'''·<)1'"'0 ., 0.....10(.0· .. ·0'·•. ,a'OO'll"!1

0....... ..".", of '.'ron'«'tor

0..,,,.,, "."..h.,.., .... or

.."""1«..,,(ao''''·l~N. ,.-""...... )

•••poh'''' Yoll""Turt

,-!'<loo,., Prl" •• ll?'.-.""•• 0"')""'.CO""""d.~ Tuff

'Oh•• 0..r17'O£on<"".,,"d•••• Toff

'Oh•• on""7'>\&."ron' (1)

"'I"no

...,"",

S-" ....

.-~

"SJ III

""...

.~.

,"_521

IO_'"-.....

",.-=

.-no

._11'

"'.r'"

100" '" "_"000'1

."'00011

.".oooll

.-

.,'00",,11

i1.~OO ~ )00

.~.~"".'00

ll.2ao • 00

11.J60 • '00

'0.740 • 00

0700 , ~_.m

."0, •-. m

=. •."'" ~ •4700 • •.~ , •'800 , 00

-. •_. , ,.n" , ,.020' , ,.an, ~ 00

a"'" ; ..0_: 00

,~. •~. •n50 : ,m

:l(;5O , •

-. •".. •.m. •,?lO ~ •'700 : •

".,.,,"".

'"'",-,,-,'"'"'",-,'",-,,-,,-,,-,,,,

'"'",-,,-,,-,,-,,-,m

'"m

'",-,,-,,-,,-,,-,

'0

TABLE 9« (cOIJtinutd)

_'7 .--u.......... of

••..-, C••, ••

rOOO~I·"·', "',,,,',,,,,,

G. CAPALDI, L. CIVF.TTA, P.Y. GILLOT

"",.. tr-ooou_ -,..... "_,., <. .,-b·.... 0.•. '

........ 0-'1\0 _.- PlO! ~ '"-•.7" 3790 , • '",._7U. 3110 ! • '",'.71) -.. '"'••"Jo "00 • .., '"'

(I) = AllSSIO Cl al., 197}; (2) = AusslO Cl al., 1971; (J) = AUS$IO et aI., 1974; (4) = 01 GuC).I.AMO and KELLEI. 1971-1972; (') = LUCINI .nd TONGlOaGl, 19'9; (6) = Rosl and SauNA, in pres5;(7) = DEUUIAS et .1., 1979.

TABLE 1014C dates of paleosol and carboniud woods intercalated in the island 0/ Procida

(.0<0''', d.'... "_u"" 0< -,..... ......".1 <•0"'."...-,< _,,,''' 1,--- • .oJ)

• , ..... I. eor..... Wo. *...u ... or ¥i..... ~< .......,...- "'.""',""c...... ·.ortI. '''''''02"1) -'-, .......11. I -'-"'. ,,_••n. .,~ ..._11 ......... : -c....·OVtI. , .........-1/_.

... K._. -SMe' • .:0.....11... .,- 2lI._ 1 -lOO"'~·\ol"'II. "_-07".) .., 2$._ : -_.1" .. """<oIl• .....- .,~ ...UO 1 -_ .............,'''& 1101_...,..,.,._to0.""',,& 5o'<h,... ",0- lI-'~) ",100 ~ ",.,_..

'"'".,".'",'"''"'

'"'

(I):: AUSSIO Cl 11., 1976.

GEOCHRONOLOGY OF PLlO-PLEISTOCENE VOLCANIC ROCKS ETC.

TABLE 11K-Ar dates 0/ Roccamonfina volcanic!

O.tori.l ,'"

.,A".ra'.'"

A&' • ~'h••"".Iy.oro • 10 )

,...."" ..."",."M.'.""'''

"".,.,.,. O1onl ...XII...",••" ,. """ 'S ke)

"".ra

ss 4X1. 1.'" ••M'" .... 'TO....,..

.....,. '.....,h.ss <XI '" '"

"or .....,.,. s.-..,.

50<>". Alto

.. , •••• Ponto """,."'.......,..

............

""'to .., C...,,""',

ss <30. 11.2"' ••..ss <10. 11.S 1<.0

'.Corl.

I.,onl "'•• ,,_ .f.". «.".1

"'...., "_ .. <30.» .•", ••

• 1<.0 ,.".", .f eu..

I"~.",, , ...1. """eoo.qtI01.

T.......'t1t I.""",..-,...,""< ,''''',,,,,,.,. n ..

......" ..",".lo•• n ...

Lo"", t1 "

..."""..,....",..1••• n ..

c..,,,,...._",•.I ... nO.

......1<'H......." •.1... n ..

T.......,.'e '....,1<,...h •• n ..

T '''. , .... 'U'••, n ..

T'.'"I<" ,,,,,'<1t•..... nO.

..""'\O- ri ...,... "...

~""" ,._t.....,,.l.otie".-""""'''t<c..,., ....,."",,,."''''''''-'''''''''''.I ... n ..

""tt. "-'''''tic

'""

".,.

O",,_l'

0_17

.-,

.-."_n"'_1',-.

.-.

.-,

'·l~

••""'·22

"",.1'

"'_12

""'·21'

••

"

"

"

10.23

11 . ,.

,.'."

'.1'....•• 12

ll."

11 1.

1113

11.1•

ll. ,.

13."

1?<l

A.3'

11.066

10.....

...

» .••

0 ••

••

32."

"" ...••

>0.<'

".0'....

"".1.

,

...,......."

...1.....

•..u

..

.. ,""

,." ,0.01

1.>'7 ~ 0.011

,.2$ • 0.0.

1.01 ~ 0."

'.20 , 0.;10

1> , 0.01>

II ,0."'

,.OS , 0.00

0." , 0.0'>

0." ,0.10

0 .•• t 0.G<

0.79 t 0.01>

0.'1 .0.0>

0." t 0.07

0.,>, t 0.0'

0." ,0.03

O.SO ,0.'"

0." : 0.02

0.07 ,0.02

0." t 0.02

.... : 0.0.

0." • 0.03

0.3« t 0.01

'.307: 0 .....

0.",,' • 0.02'

0.•' ,0."

'",.,

'",.,'"'",.,

'"'",.,'"".,..,..,.,

'"'"'"'",.,,.,,.,,.,'",.,'"..,,.,'"

(I) = G'ANNETTI et al., 1979; (2) = GASPARINI and ADAMS, 1969; (3) = CoRTlNl et al., 1975; (4) =GIANNETTl and LUHR, 198}.

41

...1<-.. _,

-.-01' ....

G. CAPALOI, L. CIVETTA, P.Y. GILLOT

TABLE 12

K·Ar dotes 0/ vo/conics drdged from the central Tyrrhenidll uomountr

-- -,.... ......-,., • .......... 00.... _ • - .,-'" 1..1/•••0:', '" t~. ,a'1

............11_ -.. ~... _.. ••r; \." ... ".' a.B.O..... no

en .....1120- ,... ..•. k' m, -- ,." •.•. k.' ,.,.~ 1.1. " k.' " • o.~ '0'f 'DI~"'" .." k ~., " • 0.2 ,.,

(1) = C. SAVELLI, pc:rsonal communialion; (2) = SELLI er .1., 1977.

REFERENCES

AU:SSIO M., BI!LLA F., IMPROTA L., BIlLLUOM1·NI G" CoIITESl C., TURI B. (1971) _ Unirmsit)l01 Rome carbon·14 da/(!s IX. Radiocarbon, U(21, }9.s-411.

ALESSIO M., BELLA F., IMPIlOTA S., BELLUOMI·NI G., ULOEIlONI G., ConESI c., TUII B.(197}) - Univer$ily 0/ Rome c",bon·J4 dllles X.Radiocarbon, " (1), 165-178.

Au:sSI() M., BELLA F., IMPt.OTA S., B£LLUOMINI G"C.U.oUONI G., eo.TESt C., TUlI B. (1974) •Un;lIVsily of Rome cuban·I" daUt Xli. Radio­carbon, 16 (31, "8-367.

AUSSIO M., BULA F., IMPIlOTA 5., BELLUOMINI G.,CAUlUOHI G.• CoI.TESI C, TUI.I B. (1976) ­Univnsit, of Rome cllTbon-14 dMus XIV. Radio­carbon, 18, 3, 321-349.

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