Impact Crater Diameter

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CHICXULUB EJECTA TRENCHES & BREAKUP

2014 OCEAN SCIENCES MEETING - HONOLULU, HI - FEBRUARY 23 - 28, 2014 - Robert L. Page, Professor Emeritus, Kansas State University, Principal Investigator - 785.236.0569 - Jared T. Pumphrey, MLA, Scientific Visualization and Graphic Design - 816.726.0041

CHICXULUB EJECTA TRAJECTORY

DISCOVERYDuring a recent 12,000 mile Pacific voyage from Australia to the USA, two trenches were discovered. By extending a central axis from the trench impact site, it intersects and appears to relate to the Chicxulub Impact.

DESCRIPTIONTrench A begins at a depth of 4,672m, 704km from the Chicxulub impact. It is 18km long, 5km wide and 1,158m deep. Trench B begins

at a depth of 3,820m. It is 23km long, 7km wide and 2,102m deep. At the end of it is a debris deposit 15km long. Down range from Trench B appears to be the terminal impact of the object that created the two trenches in the form of several small seamounts and islands indicating breakup of the object 1,116km from Chicxulub.

MATERIALThe trenches were possibly created by large ejecta from the Chicxulub impact or

The section shows the approximate entry angle of the Chicxulub crater and the potential

100 MILLION YEAR IMPACT TIMELINE: 19 OF 39 IMPACTS CONSISTED OF 2 TO 5 PROBABLE CONCURRENT IMPACTS

Trajectory Path

Chicxulub Crater Impact Gulf of Mexico

Entry at Impact Trench A -4,672 m

661 km 97 km 358 km

Terminal Debris Field -30 m Exit at Impact Trench B -1,718 m

Sea Level

Yucatan Peninsula Western Caribbean Impact Trenches

Impactor Ricochets Down Range Terminal Impact

Incoming Angle15°?

30° ?

15°?

trajectory of ejecta material to Trench A, Trench B, and Terminal Debris Field.

Contour: Interval 50 m

CHICXULUB EJECTA TRENCHES BISECT REGIONAL SEABED FEATURES

Trench B

Trench A

Trench B

BATHYMETRY WITH 2KM GRID

LOOKING NORTHWEST FROM TRENCH B LOOKING SOUTHWEST FROM TRENCH A

TRENCH B LOOKING SOUTHWEST

TRENCH A & B LOOKING SOUTH

TRENCH LOCATION & PROXIMITY

TRAJECTORY & OCEANIC RELIEF

OVERALL LANDFORM

TRENCH B - PROFILE B-B’ LOOKING NORTHEAST

TRENCH A - SECTION C-C’ TRENCH A - PROFILE A-A’ LOOKING NORTHEAST

TRENCH B - SECTION D-D’

Trench A

Trench B

SourcesBODC, British Oceanographic Data Centre, “Data.”

Last modified September 6, 2013. Accessed January 29, 2014. http://www.bodc.ac.uk/.

ESRI. 2012. “Oceans, World Countries.”

GEBCO. Gridded Bathymetric Chart of the Oceans, Last modified July 29 , 2013. Accessed January 29, 2014. http://www.gebco.net/data_and_products/gridded_bathymetry_data/.

Google Earth V 7.1.2.2041 (October 7, 2013). 2010, 2011, 2012, 2013. Digital Globe, GEBCO, Landset, NGA, NOAA, SIO, TerraMetrics, US Dept of State Geographer, US Navy.

NGA Chart 28004: Caribbean Sea-Northwest Part (LORAN-C). National Geospatial-Intelligence Agency (NGA), 2013. NGA28004.

NOAA. National Geophysical Data Center, “Bathymetry Data Viewer.” Accessed January 29, 2014. http://maps.ngdc.noaa.gov/viewers/bathymetry/.

Planetary and Space Science Centre, PASSC. University of New Brunswick, “Earth Impact Database.” http://www.passc.net/EarthImpact Database/index.html. Accessed January 19, 2014.

ESRI, GEBCO, BODC

Google, Landsat

Google, Landsat

Google, Landsat

Data Source: ESRI, NOAA

Data Source: PASSC

IMPACTS ALIGN WITH EJECTA SITEGoogle, US Dept. of State

ESRI, GEBCO, BODCESRI, GEBCO, BODC

ESRI, GEBCO, BODC

TRENCH PROFILE INDICATOR ESRI, GEBCO, BODC

Technology StatementExisting ocean floor data is broad and generalized in nature. Using ArcGIS, Google Earth, Adobe Creative Suite, and SketchUp congruently, multiple data

sources were synthesized to better visualize and understand the scale, proximity, and general characteristics of the Chixculub Ejecta impact trenches.

© 2014 Robert L. Page All Rights Reserved

POSTER #1334 - SESSION 118 - EXTREME OCEANOGRAPHIC EVENT ABSTRACT #13908

from an asteroid that separated before or upon impact, carrying material 1,116km down range.

TRAJECTORYThe trajectory of both trenches is about a 3-degree upward angle. This seems to indicate the object deflected slightly upward upon impact with the seabed.

MULTIPLE IMPACTSWhen locating asteroid impacts from 65 million years ago on a globe they form a

common orbital plane. This indicates that the largest, Chicxulub, attracted the smaller ones due to its larger gravitational field. As they approached earth, the larger gravitational field caused the smaller asteroids to separate, thus making multiple impacts. This phenomenon is also noted in the Shoemaker-Levy 9 Comet impact on Jupiter with 21 impacts over seven days.

RESEARCH PHASESPhase 1 - Assemble

available oceanic data from SOI, NOAA, US Navy, NGA and other sources in the impact area. Completed. Phase 2 - Prepare detailed GIS and Bathymetric maps of the sites. Completed. Phase 3 - Survey the sites with sidescan sonar and underwater photography.

Phase 4 - Gather surface and core samples with under water robots from the impact sites and debris fields.Phase 5 - Analyze the samples.

Phase 6 - Correlate the data to other regional asteroid impacts.Phase 7 - Prepare a documentary film and publish the data related to the sites and their exploration.

SIGNIFICANCEThis research will contribute to the knowledge of the Chicxulub impact and potential identification of its composition. No other large ocean floor impact sites related to the Chicxulub impact have been identified or researched.REFERENCE TO NGA CHART 28004

NGA

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