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Digital signature on file

April 5, 2011

Mr. Simon Urbina Araya

Universidad de Chile

Carlos Anwandter 610

Casa 4, Interior

Santiago, Chile

RE: Radiocarbon Dating Results For Samples CS433U1NR2A, CS61U1N7, GT99U1R1, GT153U1N7,

GT16401N4, PIRCAS198U1R2, PIRCAS232U1N3, PIRCAS251U1N3B, PIRCAS269U1N3B,

TR49A5L11, TR49A5L14

Dear Mr. Araya:

Enclosed are the radiocarbon dating results for 11 samples recently sent to us. They each

provided plenty of carbon for accurate measurements and all the analyses proceeded normally. As usual,the method of analysis is listed on the report with the results and calibration data is provided where

applicable.

As always, no students or intern researchers who would necessarily be distracted with other

obligations and priorities were used in the analyses. We analyzed them with the combined attention of

our entire professional staff.

If you have specific questions about the analyses, please contact us. We are always available to

answer your questions.

Thank you for prepaying the analyses. As always, if you have any questions or would like to

discuss the results, dont hesitate to contact me.

Sincerely,

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Mr. Simon Urbina Araya Report Date: 4/5/2011

Universidad de Chile Material Received: 2/28/2011

Sample Data Measured 13C/12C ConventionalRadiocarbon Age Ratio Radiocarbon Age(*)

Beta - 294694 1640 +/- 40 BP -21.7 o/oo 1690 +/- 40 BP

SAMPLE : CS433U1NR2A

ANALYSIS : Radiometric-Standard delivery

MATERIAL/PRETREATMENT : (charred material): acid/alkali/acid

2 SIGMA CALIBRATION : Cal AD 250 to 420 (Cal BP 1700 to 1520)

____________________________________________________________________________________

Beta - 294695 1860 +/- 50 BP -23.9 o/oo 1880 +/- 50 BP

SAMPLE : CS61U1N7

ANALYSIS : Radiometric-Standard delivery with extended counting



____________________________________________________________________________________

Beta - 294696 2050 +/- 40 BP -22.0 o/oo 2090 +/- 40 BP

SAMPLE : GT99U1R1



2 SIGMA CALIBRATION : Cal BC 200 to 10 (Cal BP 2150 to 1960)____________________________________________________________________________________

Beta - 294697 2030 +/- 50 BP -22.1 o/oo 2080 +/- 50 BP

SAMPLE : GT153U1N7



2 SIGMA CALIBRATION : Cal BC 340 to 330 (Cal BP 2290 to 2280) AND Cal BC 200 to Cal AD 20 (Cal BP 2150 to 1930)

____________________________________________________________________________________

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Beta - 294698 2000 +/- 40 BP -23.5 o/oo 2030 +/- 40 BP

SAMPLE : GT16401N4

ANALYSIS : Radiometric-Standard deliveryMATERIAL/PRETREATMENT : (charred material): acid/alkali/acid

2 SIGMA CALIBRATION : Cal BC 160 to Cal AD 60 (Cal BP 2110 to 1890)

____________________________________________________________________________________

Beta - 294699 1380 +/- 30 BP -9.3 o/oo 1640 +/- 30 BP

SAMPLE : PIRCAS198U1R2

ANALYSIS : AMS-Standard delivery

MATERIAL/PRETREATMENT : (wood): acid/alkali/acid

2 SIGMA CALIBRATION : Cal AD 350 to 440 (Cal BP 1600 to 1510) AND Cal AD 490 to 520 (Cal BP 1460 to 1430)

____________________________________________________________________________________

Beta - 294700 2140 +/- 40 BP -22.3 o/oo 2180 +/- 40 BP

SAMPLE : PIRCAS232U1N3

ANALYSIS : AMS-Standard deliveryMATERIAL/PRETREATMENT : (charred material): acid/alkali/acid

2 SIGMA CALIBRATION : Cal BC 370 to 150 (Cal BP 2320 to 2100) AND Cal BC 140 to 110 (Cal BP 2090 to 2060)

____________________________________________________________________________________

Beta - 294701 1800 +/- 30 BP -21.6 o/oo 1860 +/- 30 BP

SAMPLE : PIRCAS251U1N3B


MATERIAL/PRETREATMENT : (wood): acid/alkali/acid


____________________________________________________________________________________

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Beta - 294702 1390 +/- 30 BP -10.5 o/oo 1630 +/- 30 BP

SAMPLE : PIRCAS269U1N3B

ANALYSIS : AMS-Standard deliveryMATERIAL/PRETREATMENT : (wood): acid/alkali/acid


Cal AD 480 to 530 (Cal BP 1470 to 1420)

____________________________________________________________________________________

Beta - 294703 100.1 +/- 0.4 pMC -9.9 o/oo 240 +/- 30 BP

SAMPLE : TR49A5L11


MATERIAL/PRETREATMENT : (plant material): acid/alkali/acid


Cal AD 1940 to 1950 (Cal BP 10 to 0)

____________________________________________________________________________________

Beta - 294704 340 +/- 30 BP -23.6 o/oo 370 +/- 30 BPSAMPLE : TR49A5L14




____________________________________________________________________________________

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C A L IB R A T I O N O F R A D IO C A R B O N AG E TO C A L E N D A R Y E AR S

(Variables: C 13/C12=-21.7 :lab. mult=1)

L a b o r ato r y n u m b e r : B e ta -2 9 46 9 4

Conventional radiocarbon age: 169040 B P

2 Sigma calibrated result:

(95% probability)

Cal AD 250 to 420 (Cal B P 1700 to 1520)

Intercept data

Intercept of radiocarbon agewith calibration curve: Cal AD 380 (Cal BP 1570)

1 S igma calibrated results:

(68% p robability)

Cal AD 260 to 280 (Cal BP 1680 to 1670) and

Cal AD 330 to 410 (Cal BP 1620 to 1540)

4985 S.W. 7 4th Court, Miami, Florida 33155 Tel: (305)667-5167 F ax: (305)663-0964 E-Mail: [email protected]

Beta An alytic R adiocarbon D ating Labor atory

Talma, A. S . , Vogel, J. C., 1993, Ra dioca rbon 35(2), p317-322

A S im plif i ed A pp roa c h t o C ali br atin g C 14 Da t esM ath em ati cs

In tC a l0 4: Ca l ib r a ti o n Iss u e o f Ra di oc a rbo n (V ol um e 46 , nr 3 , 20 04 ).

IN T C A L0 4 Ra di oca r bo n A ge C al ibr ati onCalibration Database

IN T C AL 04

Da tab as e u s ed

References:

Radio

carbonage(BP)

1540

1560

1580

1600

1620

1640

1660

1680

1700

1720

1740

1760

1780

1800

Charred m aterial

1820

C a l A D

2 20 24 0 26 0 2 80 3 00 320 340 36 0 38 0 4 00 4 20 4 40

169040 BP

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(95% probability)

Cal AD 20 to 240 (Cal B P 1930 to 1710)

Intercept data


1 S igma calibrated result:

(68% p robability)

Cal AD 70 to 210 (Cal BP 1880 to 1740)







IN T C AL 04

Da tab as e u s ed

References:

Radio

carbonage(BP)

1650

1700

1750

1800

1850

1900

1950

2000

Charred m aterial

2050

C a l B C / A D

0 20 40 60 8 0 10 0 120 140 160 180 200 220 24 0 2 60

188050 BP

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(Variables: C13/C12=-22:lab. m ult=1)




(95% probability)

Cal B C 200 to 10 (Cal B P 2 150 to 1960)

Intercept data

Intercept of radiocarbon agewith calibration curve: Cal BC 100 (Cal BP 2050)


(68% p robability)

Cal BC 170 to 50 (Cal BP 2120 to 20 00)







IN T C AL 04

Da tab as e u s ed

References:

Radio

carbonage(BP)

1940

1960

1980

2000

2020

2040

2060

2080

2100

2120

2140

2160

2180

2200

Charred m aterial

2220

C a l B C / A D

2 20 20 0 18 0 1 60 1 40 120 100 80 60 40 20 0

209040 BP

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2 Sigm a calibrated results:

(95% probability)

Cal B C 340 to 330 (Cal B P 2290 to 2280) and

Cal B C 200 to Cal AD 20 (Cal B P 2150 to 1930)

Intercept data



(68% p robability)

Cal BC 170 to 40 (Cal BP 2120 to 19 90)







IN T C AL 04

Da tab as e u s ed

References:

Radio

carbonage(BP)

1850

1900

1950

2000

2050

2100

2150

2200

Charred m aterial

2250

C a l B C / A D

4 00 35 0 300 250 200 15 0 100 5 0 0 5 0 1 00

208050 BP

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(95% probability)

Cal B C 160 to Cal AD 60 (Cal B P 2110 to 1890)

Intercept data



(68% p robability)

C a l B C 6 0 to C a l A D 1 0 (C a l B P 2 0 1 0 to 1 9 4 0 )







IN T C AL 04

Da tab as e u s ed

References:

Radio

carbonage(BP)

1880

1900

1920

1940

1960

1980

2000

2020

2040

2060

2080

2100

2120

2140

Charred m aterial

2160

C a l B C / A D

1 80 1 60 140 12 0 100 80 60 40 20 0 20 40 60 80

203040 BP

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(Variables: C 13/C12=-9.3:lab. mult=1)




(95% probability)

Cal AD 350 to 440 (Cal B P 1600 to 1510) and

Cal AD 490 to 520 (Cal B P 1460 to 1430)

Intercept data



(68% p robability)

Cal AD 390 to 420 (Cal BP 1560 to 1520)







IN T C AL 04

Da tab as e u s ed

References:

Radio

carbonage(BP)

1520

1540

1560

1580

1600

1620

1640

1660

1680

1700

1720

W o o d

1740

C a l A D

3 20 34 0 36 0 3 80 4 00 420 440 46 0 48 0 5 00 5 20 5 40

164030 BP

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(95% probability)

Cal B C 370 to 150 (Cal B P 2320 to 2100) and

Cal B C 140 to 110 (Cal B P 2090 to 2060)

Intercept data

Intercepts o f radiocarbon agewith calibration curve: Cal BC 340 (Cal BP 2290) and

Cal BC 330 (Cal BP 2280) andC a l B C 2 0 0 ( C a l B P 2 1 5 0 )

1 S igma calibrated results:(68% p robability)

Cal BC 360 to 290 (Cal BP 2300 to 2240) andCal BC 240 to 180 (Cal BP 2180 to 2130)







IN T C AL 04

Da tab as e u s ed

References:

Radiocarbonage(BP)

2040

2060

2080

2100

2120

2140

2160

2180

2200

2220

2240

2260

2280

2300

Charred m aterial

2320

C a l B C

4 00 350 300 2 50 200 150 1 00 50

218040 BP

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(95% probability)

Cal AD 80 to 230 (Cal B P 1870 to 1720)

Intercept data



(68% p robability)

Cal AD 120 to 210 (Cal BP 1830 to 1740)







IN T C AL 04

Da tab as e u s ed

References:

Radio

carbonage(BP)

1740

1760

1780

1800

1820

1840

1860

1880

1900

1920

1940

W o o d

1960

C a l A D

40 60 80 100 120 140 160 180 20 0 2 20 2 40

186030 BP

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(95% probability)

Cal AD 380 to 450 (Cal B P 1570 to 1500) and

Cal AD 450 to 460 (Cal B P 1500 to 1490) andCal AD 480 to 530 (Cal B P 1470 to 1420)

Intercept data


1 S igma calibrated result:(68% p robability)

Cal AD 400 to 430 (Cal BP 1550 to 1520)







IN T C AL 04

Da tab as e u s ed

References:

Radioca

rbonage(BP)

1520

1540

1560

1580

1600

1620

1640

1660

1680

1700

1720

W o o d1740

C a l A D

3 60 3 80 40 0 420 4 40 460 480 5 00 520 5 40

163030 BP

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(Variables: C 13/C12=-9.9:lab. mult=1)




(95% probability)

Cal AD 1640 to 1 670 (Cal B P 310 to 280) and

Cal AD 1770 to 1 800 (Cal B P 180 to 150) andCal AD 1940 to 1 950 (Cal B P 10 to 0)

Intercept data

Intercept of radiocarbon agew i th c a lib r a ti o n cu rv e : C a l A D 1 6 6 0 ( C a l B P 2 9 0 )

1 S igma calibrated result:(68% p robability)

Cal AD 1650 to 1660 (Cal BP 300 to 280)







IN T C AL 04

Da tab as e u s ed

References:

Radioca

rbonage(BP)

12 0

14 0

16 0

18 0

20 0

22 0

24 0

26 0

28 0

30 0

32 0

Plant m aterial34 0

C a l A D

1550 1600 16 50 1700 1750 18 00 185 0 190 0 1 950 200

24030 BP

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(95% probability)

Cal AD 1450 to 1 540 (Cal B P 500 to 420) and

Cal AD 1540 to 1 630 (Cal B P 400 to 320)

Intercept data

Intercept of radiocarbon agew i th c a lib r a ti o n cu rv e : C a l A D 1 4 8 0 ( C a l B P 4 7 0 )

1 S igma calibrated results:

(68% p robability)

Cal AD 1460 to 1520 (Cal BP 490 to 430) and

Cal AD 1590 to 1620 (Cal BP 360 to 330)







IN T C AL 04

Da tab as e u s ed

References:

Radio

carbonage(BP)

26 0

28 0

30 0

32 0

34 0

36 0

38 0

40 0

42 0

44 0

46 0

Charred m aterial

48 0

C a l A D

1420 14 40 1 460 1 480 1500 1520 1 540 156 0 158 0 1 600 1620 164

37030 BP

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