Chesapeake Bay - Hypervelocity Impact Crater

Alternate Names Chesapeake
Local Language
Coordinates 37° 17' 56" N; 76° 2' 14" W
Notes
  1. Centred on the mouth of Chesapeake Bay on the Atlantic coast of the USA (Koberl et al., 1995).
Country United States of America
Region Virginia
Date Confirmed 1994
Buried? Yes
Notes
  1. Buried by 400 to 500 m of upper Eocene to Present sediments.
Drilled? Yes
Notes
  1. Nearly 60 drill holes, 2 of which are continuously corded (ICDP drilling GSA Sp. Paper 458). Drilling began September 2005 and ended in May 2006 (http://www-icdp.icdp-online.org/front_content.php?idcat=713).
Target Type Mixed
Notes
  1. Upper Proterozoic gneiss, granite, overlain by Jurassic-Triassic sandstone, shale, siltstone, and Cretaceous deltaic deposits. 0.65 km of weakly lithified L. Cretaceous - U. Eocene sediments (mainly siltstones, sandstones, some shale and greywacke) overlying Palaeozoic-Precambrian metasediments and granites.
Sub-Type Greywacke, Metasedimentary, Plutonic, Sandstone, Shale, Siltstone
Apparent Crater Diameter (km) 90 km
Age (Ma) 34.86 ± 0.32
Notes :
  1. 34.86 ± 0.32 Ma was obtained using 40Ar/39Ar of tektites and impact melt rock (Assis Fernandes et al., 2019). Additional age constraints: (U-Th)/He dating was conducted on 21 zircon grains obtained from a core sample to give a formation age of 33.99 ± 0.71 Ma (Biren et al., 2019). Biostratigraphy indicates an age of 35.5 ± 0.6 Ma (Poag and Aubry, 1995).

Method :
  1. 40Ar/39Ar
Impactor Type Unknown

Advanced Data Fields

Notes

Erosion
4
  1. Burifed structure so difficult to determine erosion. No evidence for ejecta deposits.
Final Rim Diameter
Unknown
Apparent Rim Diameter
90 km
  1. Diameter found in (Poag et al., 1995) (Poag et al., 1997) (Poag et al., 2004).
Rim Reliability Index
  1. Ring structure The central peak broadens out to 12 km or more in diameter (Poag et al., 2004). Information based on seismic reflection profiles.
Crater Morphology
Complex
Central Uplift Diameter
12km
Central Uplift Height
<1
Uplift Reliability Index
2
Structural Uplift
Unknown
Thickness of Seds
≥0.65 km
Target Age
Precambrian Palaeozoic Mesozoic Cenozoic
Marine
Yes
Impactor Type
Other Shock Metamorphism
Reidite
  1. Reidite reported in distal ejecta by Cavosie et al. (2021).
Shatter Cones
No
  1. Buried impact structure.
Planar Fractures
No
Planar Deformation Features
Yes
  1. Shock PDFs in quartz (omega, pi) and feldspar (Koeberl et al., 1995).
Diaplectic Glass
Yes
  1. In quartz grains (Jackson et al., 2016).
Coesite
Yes
  1. In situ coesite within impactites; micrometer-scale grains of coesite trapped in low-density amorphous silica of impact melt clasts; coesite within quartz grains in suevite (Jackson et al., 2016).
Stisovite
Yes
  1. Not observed in situ but has been reported in distal ejecta (Jackson et al., 2016).
Crater Fill
LB, MB, M
  1. (Poag et al., 2004) report lenses of suevites (melt-bearing breccias) inside polymict lithic breccias as crater-fill, and spherules inside and in the close vicinity of the rim. These crater-fill breccias are referred to as the Exmore Breccia, which shows an upward-fining that resembles a ‘debris-flow deposit’, and can be up to 1.2 thick in the deepest parts and 10 m thick outside of the crater. They avoid calling the latter (Exmore Breccia outside the rim) an ejecta layer because they consider that these breccia formed in large part by washback from the ‘impact-generated tsunami wave train’, i.e., a resurge deposit. (Horton et al., 2008a) describe a melt-bearing breccia with crystalline clasts in the deepest parts of the depression and an overlying resurge deposit called Exmore Beds (the Exmore Breccia previously mentioned includes the Exmore Beds and brecciated sedimentary target material). (Horton et al., 2008b) (Jackson et al., 2016) report polymict lithic breccias, a 70 m thick layer of melt-bearing breccias (suevites) and clast-rich impact melt rocks, and 650 m of resurge deposits. Lithic and melt-bearing breccia dykes are also reported.
Proximal Ejecta
S
Distal Ejecta
Dykes
LB, MB
Volume of Melt
Depth of Melting

References

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A J Pyzik, S E Sommer (1972) Geochemical Profiles of Chesapeake Bay Sediments - Upper Cretaceous to Recent, Transactions-American Geophysical Union 53(4), p. 529-&

S R Holdahl, N L Morrison (1973) Rates of Elevation Change in Vicinity of Chesapeake Bay as Indicated by Precise Leveling, Transactions-American Geophysical Union 54(4), p. 456-&

F Firek, G L Shideler, P Fleischer (1977) Heavy-Mineral Variability in Bottom Sediments of Lower Chesapeake Bay, Virginia, Marine Geology 23(3), p. 217-235, doi:10.1016/0025-3227(77)90020-2

C F Delia, D M Nelson, Walter R Boynton (1983) Chesapeake Bay Nutrient and Plankton Dynamics: III. The Annual Cycle of Dissolved Silicon., Geochimica Et Cosmochimica Acta 47(11), p. 1945-1955, doi:10.1016/0016-7037(83)90212-0

M S Kearney, L G Ward (1986) Accretion Rates in Brackish Marshes of a Chesapeake Bay Estuarine Tributary, Geo-Marine Letters 6(1), p. 41-49, doi:10.1007/bf02311695

J H Rule (1986) Assessment of Trace-Element Geochemistry of Hampton Roads Harbor and Lower Chesapeake Bay Area Sediments, Environmental Geology and Water Sciences 8(4), p. 209-219, doi:10.1007/bf02524948

C H Hobbs, J P Halka, R T Kerhin, M J Carron (1992) Chesapeake Bay Sediment Budget, Journal of Coastal Research 8(2), p. 292-300

E G Stein (1992) Chesapeake Bay Initiatives Action plan Maryland-Department-of-Transportation State Highway Administration, Environment Is Our Future, p. 119-126

D S Powars, C W Poag, R B Mixon (1993) The Chesapeake Bay "impact crater," stratigraphic and seismic evidence, Abstracts with Programs - Geological Society of America 25(6), p. 378, Geological Society of America (GSA), Boulder, CO, url

R A Kerr (1994) Making an impact under the Chesapeake, Science 265(5175), p. 1036, American Association for the Advancement of Science, Washington, DC, url

C W Poag, D S Powars, R B Mixon, T Scott Bruce (1994) Convulsive events in Atlantic Coastal Plain evolution; effects of the Chesapeake Bay bolide impact, Abstracts with Programs - Geological Society of America 26(7), p. 152, Geological Society of America (GSA), Boulder, CO, url

J W Moffett (1994) A Radiotracer Study of Cerium and Manganese Uptake Onto Suspended Particles in Chesapeake Bay, Geochimica Et Cosmochimica Acta 58(2), p. 695-703, doi:10.1016/0016-7037(94)90499-5

C W Poag, D S Powars, L J Poppe, R B Mixon (1994) Meteoroid mayhem in Ole Virginny; source of the North American tektite strewn field, Geology (Boulder) 22(8), p. 691-694, Geological Society of America (GSA), Boulder, CO, url, doi:http://dx.doi.org/10.1130/0091-7613(1994)022<0691:MMIOVS>2.3.CO;2

D S Powars, T Scott Bruce, C W Poag, R B Mixon (1994) Virginia's coastal plain inland salt water wedge; a geohydrologic response to the Chesapeake Bay bolide impact, Abstracts with Programs - Geological Society of America 26(7), p. 410, Geological Society of America (GSA), Boulder, CO, url

R A Kerr (1995) Chesapeake Bay impact crater confirmed, Science 269(5231), p. 1672, American Association for the Advancement of Science, Washington, DC, url

C W Poag (1995) Geophysical signature of the Chesapeake Bay impact crater (late Eocene), Meteoritics & Planetary Science 30(5), Derek W G Sears (ed.), p. 561-562, Meteoritical Society, Fayetteville, AR, url

D W Edsall, D F Powars, F D Correll, D Moore (1995) Elevated iridium concentrations may provide evidence for late Eocene Chesapeake Bay impact, Abstracts with Programs - Geological Society of America 27(6), p. 251, Geological Society of America (GSA), Boulder, CO, url

C W Poag, M-P Aubry (1995) Upper Eocene impactites of the U. S. East Coast; depositional origins, biostratigraphic framework, and correlation, Palaios 10(1), p. 16-43, Society of Economic Paleontologists and Mineralogists, Tulsa, OK, url, doi:http://dx.doi.org/10.2307/3515005

C Koeberl, W U Reimold, D Brandt, C W Poag (1995) Chesapeake Bay Crater, Virginia; confirmation of impact origin, Meteoritics & Planetary Science 30(5), Derek W G Sears (ed.), p. 528-529, Meteoritical Society, Fayetteville, AR, url

R Kerr (1995) Chesapeake Bay impact crater confirmed (Reprinted from Science, vol 269, pg 1672, 1995), Geotimes 40(12), p. 10-11

Wenzhu Lin (1995) Comet impact as a cause of the origin of tektites, Papers Presented to the ... Symposium on Antarctic Meteorites 20, p. 138-139, National Institute of Polar Research, Tokyo, url

C W Poag (1995) Late Eocene star wars; the Toms Canyon and Chesapeake Bay impact craters, U. S. East Coast, Meteoritics & Planetary Science 30(5), Derek W G Sears (ed.), p. 562, Meteoritical Society, Fayetteville, AR, url

C W Poag (1996) Structural outer rim of Chesapeake Bay impact crater; seismic and bore hole evidence, Meteoritics 31(2), p. 218-226, Arizona State University, Center for Meteorite Studies, Tempe, AZ, url

P C Riddle, A W Vaughn, J K Lucey, S E Kruse, G H Johnson, C H Hobbs III (1996) Geophysical studies of near-surface deformation associated with the Chesapeake Bay impact structure, southeastern Virginia, Abstracts with Programs - Geological Society of America 28(7), p. 119, Geological Society of America (GSA), Boulder, CO, url

C W Poag (1996) Meteoritical micropaleontology; an example from the late Eocene of Virginia, Annual Meeting Expanded Abstracts - American Association of Petroleum Geologists 5, p. 113, American Association of Petroleum Geologists and Society of Economic Paleontologists and Mineralogists, Tulsa, OK, url

G H Johnson, D S Powars (1996) Effects of Chesapeake Bay impact structure on late Cenozoic stratigraphic sequences and landscapes, southeastern Virginia, Abstracts with Programs - Geological Society of America 28(7), p. 119, Geological Society of America (GSA), Boulder, CO, url

C W Poag, D R Hutchinson, S M Colman (1996) The Exmore Breccia; impact deposit of the Chesapeake Bay Crater, Abstracts with Programs - Geological Society of America 28(7), p. 181, Geological Society of America (GSA), Boulder, CO, url

R A F Grieve (1996) Chesapeake Bay and other terminal Eocene impacts, Meteoritics 31(2), p. 166-167, Arizona State University, Center for Meteorite Studies, Tempe, AZ, url

D W Edsall, D S Powars (1996) Late Eocene Chesapeake Bay impact crater's iridium anomaly, International Geological Congress, Abstracts--Congres Geologique Internationale, Resumes 30, Vol. 3, p. 508, [International Geological Congress], [location varies], url

C Koeberl, C W Poag, W U Reimold, D Brandt (1996) Chesapeake Bay impact structure, Virginia, USA; impact in a shallow continental shelf environment, Abstracts - Geological Society of Australia 41, John M Kennard (ed.), p. 236, Geological Society of Australia, Sydney, N.S.W., url

E F Albin, J M Wampler (1996) New potassium-argon ages for georgiaites and the upper Eocene Dry Branch Formation (Twiggs Clay Member); inferences about tektite stratigraphic occurrence, Abstracts of Papers Submitted to the Lunar and Planetary Science Conference 27, Part 1, p. 5-6, Lunar and Planetary Science Conference, Houston, TX, url

C W Poag (1997) The Chesapeake Bay bolide impact; a convulsive event in Atlantic Coastal Plain evolution, Sedimentary Geology 108(1-4), Marylin P Segall, Donald J Colquhoun, Donald L Siron (ed.), p. 45-90, Elsevier, Amsterdam, url

C W Poag (1997) The Chesapeake Bay Structure; Earth's largest submarine peak-ring impact crater, LPI Contribution 922, p. 42-43, Lunar and Planetary Institute, Houston, TX, url

B P Glass (1997) Cenozoic distal impact ejecta layers in marine sediments, Abstracts with Programs - Geological Society of America 29(6), p. 79, Geological Society of America (GSA), Boulder, CO, url

C W Poag, D R Hutchinson, S M Colman, David Black, Douglas P Blanchard (1997) The Chesapeake Bay impact crater; an update, Abstracts of Papers Submitted to the Lunar and Planetary Science Conference 28, Part 3, p. 1119, Lunar and Planetary Science Conference, Houston, TX, url

C W Poag (1997) Breccia by the bowlful; the clastic fill of submarine impact craters, Abstracts with Programs - Geological Society of America 29(6), p. 79, Geological Society of America (GSA), Boulder, CO, url

Cecilia M G McHugh, Tara Paterson, S W Snyder, K G Miller (1997) Dynamics of Chesapeake Bay impact revealed by upper Eocene ejecta deposition on the New Jersey continental margin, Abstracts with Programs - Geological Society of America 29(6), p. 79, Geological Society of America (GSA), Boulder, CO, url

C W Poag (1997) Roadblocks on the kill curve; testing the Raup hypothesis, Palaios 12(6), p. 582-590, Society of Economic Paleontologists and Mineralogists, Tulsa, OK, url, doi:http://dx.doi.org/10.2307/3515413

D Stoeffler, P Claeys (1997) Extraterrestrial impacts; Earth rocked by combination punch, Nature (London) 388(6640), p. 331-332, Macmillan Journals, London, url

G H Johnson, S E Kruse, J K Lucey, A W Vaughn (1997) Evidence for post-impact deformation of late Cenozoic deposits in the outer terrace zone of the Chesapeake Bay impact structure, southeastern Virginia, Abstracts with Programs - Geological Society of America 29(6), p. 79, Geological Society of America (GSA), Boulder, CO, url

G H Johnson, D S Powars, T Scott Bruce, A W Vaughn, J K Lucey, S E Kruse (1998) Relationship of Yorktown Formation lithofacies to post-impact deformation on the terrace zone, southeastern VA, Abstracts with Programs - Geological Society of America 30(4), p. 19, Geological Society of America (GSA), Boulder, CO, url

C W Poag (1998) The Chesapeake Bay bolide impact; a new view of the coastal plain evolution, Fact Sheet - U. S. Geological Survey, p. 2, U. S. Geological Survey, Reston, VA, url

C W Poag, L J Poppe (1998) The Toms Canyon structure, New Jersey outer continental shelf; a possible late Eocene impact crater, Marine Geology 145(1-2), p. 23-60, Elsevier, Amsterdam, url

D S Powars, T Scott Bruce, G H Johnson (1998) Stratigraphic, structural, and hydrogeological complexities related to the outer rim of the Chesapeake Bay impact crater, Abstracts with Programs - Geological Society of America 30(7), p. 279, Geological Society of America (GSA), Boulder, CO, url

Cecilia M G McHugh, S W Snyder, K G Miller (1998) Upper Eocene ejecta of the New Jersey continental margin reveal dynamics of Chesapeake Bay impact, Earth and Planetary Science Letters 160(3-4), p. 353-367, Elsevier, Amsterdam, url, doi:http://dx.doi.org/10.1016/S0012-821X(98)00096-X

G H Johnson, S E Kruse, A W Vaughn, J K Lucey, C H Hobbs III, D S Powars (1998) Postimpact deformation associated with the late Eocene Chesapeake Bay impact structure in southeastern Virginia, Geology (Boulder) 26(6), p. 507-510, Geological Society of America (GSA), Boulder, CO, url, doi:http://dx.doi.org/10.1130/0091-7613(1998)026<0507:PDAWTL>2.3.CO;2

C W Poag (1999) Chesapeake invader; discovering America's giant meteorite crater, Chesapeake invader; discovering America's giant meteorite crater, p. 183, Princeton University Press, Princeton, NJ, url

D S Powars, T Scott Bruce (1999) The effects of the Chesapeake Bay impact crater on the geological framework and correlation of hydrogeologic units of the lower York-James Peninsula, Virginia, U. S. Geological Survey Professional Paper, p. 82-82, 9 sheets, U. S. Geological Survey, Reston, VA, url

J A Dingler, R D Catchings, M R Goldman, D H Underwood, D S Powars, G S Gohn, S Schindler, J Quick, G H Johnson (1999) Results of a high-resolution seismic reflection/refraction survey near the outer rim of the Chesapeake Bay meteor impact crater, Newport News, Virginia, Eos, Transactions, American Geophysical Union 80(46, Suppl.), p. 676, American Geophysical Union, Washington, DC, url

M W Lee (1999) Processing of single channel air and water gun data for imaging an impact structure at the Chesapeake Bay, U. S. Geological Survey Bulletin, p. 7, U. S. Geological Survey, Reston, VA, url

C W Poag, J B Plescia, P C Molzer (1999) Chesapeake Bay impact structure; geology and geophysics, Berichte zur Polarforschung 343, Rainer Gersonde, Alexander Deutsch (ed.), p. 79-83, Kamloth, Bremerhaven, url

C W Poag (1999) Depositional regimes during emplacement of the Exmore Breccia (Chesapeake Bay impact crater); clues from downhole geophysical logs, Abstracts with Programs - Geological Society of America 31(7), p. 64, Geological Society of America (GSA), Boulder, CO, url

C W Poag, D R Hutchinson, S M Colman, M W Lee (1999) Seismic expression of the Chesapeake Bay impact crater; structural and morphologic refinements based on new seismic data, Special Paper - Geological Society of America 339, Burkhard O Dressler, Virgil L Sharpton (ed.), p. 149-164, Geological Society of America (GSA), Boulder, CO, url

C W Poag (1999) Secondary craters from the Chesapeake Bay impact, Abstracts of Papers Submitted to the Lunar and Planetary Science Conference 30, p. abstr. no. 1047, Lunar and Planetary Science Conference, Houston, TX, url

J Smit, A Montanari, H B Vonhof, E Robin (2000) Impact spherules; the K/T boundary and late Eocene compared, International Geological Congress, Abstracts = Congres Geologique International, Resumes 31, [International Geological Congress], [location varies], url

N A Artemieva, V V Shuvalov, C Koeberl (2000) Shock metamorphic effects caused by impacts into water basin, LPI Contribution, p. 6-7, Lunar and Planetary Institute, Houston, TX, url

F Michael (2000) Chesapeake invader; book review, AAPG Bulletin 84(10), p. 1668-1669, American Association of Petroleum Geologists, Tulsa, OK, url

C W Poag, D Foster (2000) Chesapeake Bay impact crater; new seismic evidence of a central peak, Abstracts of Papers Submitted to the Lunar and Planetary Science Conference 31, p. abstr. no. 1358, Lunar and Planetary Science Conference, Houston, TX, url

D S Powars (2000) The effects of the Chesapeake Bay impact crater on the geologic framework and the correlation of hydrogeologic units of southeastern Virginia, south of the James River, U. S. Geological Survey Professional Paper, p. 53-53, 1 sheet, U. S. Geological Survey, Reston, VA, url

Z J Liu, D E Weller, D L Correll, T E Jordan (2000) Effects of land cover and geology on stream chemistry in watersheds of Chesapeake Bay, Journal of the American Water Resources Association 36(6), p. 1349-1365, doi:10.1111/j.1752-1688.2000.tb05731.x

David S Powars, L E Edwards, T Scott Bruce, Gerald H Johnson (2000) Structural and stratigraphic complexities in the coastal plain of Virginia, Abstracts with Programs - Geological Society of America 32(7), p. 458, Geological Society of America (GSA), Boulder, CO, url

C W Poag (2000) Nature and distribution of deposits derived from the Chesapeake Bay submarine impact, Abstracts with Programs - Geological Society of America 32(7), p. 163, Geological Society of America (GSA), Boulder, CO, url

R W Wichman (2000) Volcanically modified impact craters; Part 1, What should we expect on Earth?, Abstracts of Papers Submitted to the Lunar and Planetary Science Conference 31, p. abstr. no. 1926, Lunar and Planetary Science Conference, Houston, TX, url

J Whitehead, J G Spray, R A F Grieve, D A Papanastassiou, H H Ngo, G J Wasserburg (2000) Rb-Sr and Sm-Nd of upper Eocene microtektites; a potential Popigai source, Abstracts of Papers Submitted to the Lunar and Planetary Science Conference 31, p. abstr. no. 1373, Lunar and Planetary Science Conference, Houston, TX, url

G H Johnson, D S Powars, T Scott Bruce (2000) Stratigraphic and geohydrologic anomalies around the Chesapeake Bay impact structure, eastern Virginia, Abstracts with Programs - Geological Society of America 32(2), p. 28, Geological Society of America (GSA), Boulder, CO, url

D S Powars, G H Johnson, T Scott Bruce, L E Edwards (2001) The relation between the Chesapeake Bay impact structure and the structure and stratigraphy of Cenozoic deposits in eastern Virginia, Abstracts with Programs - Geological Society of America 33(2), p. 76, Geological Society of America (GSA), Boulder, CO, url

C C Teague, J F Vesecky, Z R Hallock (2001) Effective depth of HF current measurements: Observations from COPE-3, Igarss 2001: Scanning the Present and Resolving the Future, Vols 1-7, Proceedings, p. 1134-1136

D S Powars, T Scott Bruce, L M Bybell, T M Cronin, L E Edwards, N O Frederiksen, G S Gohn, J W Horton Jr, G A Izett, G H Johnson, J S Levine, E R McFarland, C W Poag, J E Quick, J S Schindler, J M Self-Trail, M J Smith, R G Stamm, R E Weems (2001) Preliminary geologic summary for the USGS; NASA Langley Corehole, Hampton, Virginia, Open-File Report - U. S. Geological Survey, p. 20, U. S. Geological Survey, Reston, VA, url

D S Powars, G S Gohn, L E Edwards, T Scott Bruce, R D Catchings, Scott Emry, G H Johnson, J S Levine, C W Poag, H A Pierce (2001) Structure and composition of the southwestern margin of the buried Chesapeake Bay impact structure, Virginia, Abstracts with Programs - Geological Society of America 33(6), p. 203, Geological Society of America (GSA), Boulder, CO, url

G S Gohn, T Scott Bruce, R D Catchings, Scott Emry, G H Johnson, J S Levine, E R McFarland, C W Poag, D S Powars (2001) Integrated geologic, hydrologic, and geophysical investigations of the Chesapeake Bay impact structure, Virginia, USA; a multi-agency program, Abstracts of Papers Submitted to the Lunar and Planetary Science Conference 32, p. abstr. no. 1901, Lunar and Planetary Science Conference, Houston, TX, url

C W Poag, G S Gohn, D S Powars (2001) From shocked basement to fallout spherules; the coring record at the Chesapeake Bay Crater, Abstracts with Programs - Geological Society of America 33(6), p. 433, Geological Society of America (GSA), Boulder, CO, url

G S Gohn, D S Powars, T Scott Bruce, J M Self-Trail, R E Weems, L E Edwards, J W Horton Jr, G A Izett, G H Johnson (2001) Preliminary interpretation of the USGS-NASA Langley Corehole, Chesapeake Bay impact structure, York-James Peninsula, Hampton, VA, Abstracts with Programs - Geological Society of America 33(2), p. 24, Geological Society of America (GSA), Boulder, CO, url

J W Horton Jr, J N Aleinikoff, G A Izett, C W Naeser, N D Naeser (2001) Crystalline rocks from the first corehole to basement in the Chesapeake Bay impact structure, Hampton, Virginia, Abstracts with Programs - Geological Society of America 33(6), p. 448, Geological Society of America (GSA), Boulder, CO, url

G S Gohn, A C Clark, D G Queen, J S Levine, E R McFarland, D S Powars (2001) Operational summary for the USGS; NASA Langley Corehole, Hampton, Virginia, Open-File Report - U. S. Geological Survey, p. 24, U. S. Geological Survey, Reston, VA, url

G H Johnson, D S Powars, T A Beach, T Scott Bruce, M S Harris, B K Goodwin (2001) 31 (super st) annual meeting, Virginia geological field conference, Annual Virginia Geology Field Conference 31, p. 40, [publisher varies], [location varies], url

G S Gohn, A C Clark, D G Queen, J S Levine, R E McFarland, D S Powars, B T Scott, L M Bybell, T M Cronin, L E Edwards, N O Frederiksen (2001) Preliminary report on the USGS-NASA Langley Corehole; the Chesapeake Bay Impact Crater Project, Open-File Report - U. S. Geological Survey, p. 44, U. S. Geological Survey, Reston, VA, url

R D Catchings, D S Powars, G S Gohn, M R Goldman, G Gandhok, G H Johnson (2001) Subsurface images of the annular trough of the Chesapeake Bay impact structure, Virginia from seismic reflection/refraction data, Abstracts of Papers Submitted to the Lunar and Planetary Science Conference 32, p. abstr. no. 1937, Lunar and Planetary Science Conference, Houston, TX, url

C W Poag, C C Team (2001) Drilling to basement inside the Chesapeake Bay Crater, Abstracts of Papers Submitted to the Lunar and Planetary Science Conference 32, p. abstr. no. 1203, Lunar and Planetary Science Conference, Houston, TX, url

R D Catchings, D E Saulter, D S Powars, M R Goldman, J A Dingler, G S Gohn, J S Schindler, G H Johnson (2001) High-resolution seismic reflection/refraction images near the outer margin of the Chesapeake Bay impact structure, York-James Peninsula, southeastern Virginia, Open-File Report - U. S. Geological Survey, p. 18, U. S. Geological Survey, Reston, VA, url

B P Glass, S B Liu (2001) Discovery of high-pressure ZrSiO4 polymorph in naturally occurring shock-metamorphosed zircons, Geology 29(4), p. 371-373, doi:10.1130/0091-7613(2001)029<0371:dohpzp>2.0.co;2

D S Powars, G S Gohn, R D Catchings, E R McFarland, T Scott Bruce, G H Johnson, G A Izett, Scott Emry, L E Edwards (2001) Deep corehole and seismic reflection data provide insights into crater-filling processes and the hydrogeology of the outer margin of the Chesapeake Bay impact structure, eastern Virginia coastal plain, USA, Abstracts of Papers Submitted to the Lunar and Planetary Science Conference 32, p. abstr. no. 2183, Lunar and Planetary Science Conference, Houston, TX, url

G S Gohn, D S Powars, J E Quick, J W Horton, R D Catchings (2002) Variation of impact response with depth and lithology, outer annular trough of the Chesapeake Bay impact structure, Virginia coastal plain, Abstracts with Programs - Geological Society of America 34(6), p. 465, Geological Society of America (GSA), Boulder, CO, url

P A Schroeder, R S Harris, M F Roden, M S Duncan, S M Holland (2002) X-ray diffraction evidence for shocked quartz in an upper Eocene sand deposit, Warren County, Georgia, U.S.A., Abstracts with Programs - Geological Society of America 34(6), p. 544, Geological Society of America (GSA), Boulder, CO, url

R J Diecchio (2002) Spatial and temporal relationships between dikes, thermal springs, and drainage divides in the Appalachian Valley & Ridge and the Chesapeake Bay impact structure, Abstracts with Programs - Geological Society of America 34(6), p. 466-467, Geological Society of America (GSA), Boulder, CO, url

B P Glass (2002) Distal impact ejecta from the Chesapeake Bay impact structure, Abstracts with Programs - Geological Society of America 34(6), p. 466, Geological Society of America (GSA), Boulder, CO, url

L E Edwards, N O Frederiksen, J M Self-Trail, C W Poag (2002) Paleontology of crater-fill deposits, Chesapeake Bay impact structure, Virginia, Abstracts with Programs - Geological Society of America 34(6), p. 465-466, Geological Society of America (GSA), Boulder, CO, url

E R McFarland (2002) Hydrochemical evidence for the origin of elevated ground-water salinity in the Chesapeake Bay impact structure, southeastern Virginia, Abstracts with Programs - Geological Society of America 34(6), p. 466, Geological Society of America (GSA), Boulder, CO, url

C W Poag (2002) Structure and morphology of the Chesapeake Bay submarine impact crater, Abstracts with Programs - Geological Society of America 34(6), p. 465, Geological Society of America (GSA), Boulder, CO, url

C W Poag (2002) Biospheric consequences of the Chesapeake Bay bolide impact, Abstracts with Programs - Geological Society of America 34(6), p. 467, Geological Society of America (GSA), Boulder, CO, url

C W Paog, J B Plescia, P C Molzer (2002) Ancient impact structures on modern continental shelves; the Chesapeake Bay, Montagnais, and Toms Canyon Craters, Atlantic margin of North America, Deep-Sea Research. Part II: Topical Studies in Oceanography 49(6), p. 1081-1102, Pergamon, Oxford, url, doi:http://dx.doi.org/10.1016/S0967-0645(01)00144-8

J M Self-Trail (2002) "Shocking" effects on distribution and taphonomy of calcareous nannofossils from the Chesapeake Bay impact crater, SE Virginia, Journal of Nannoplankton Research 24(2), p. 158, International Nannoplankton Association, The Hague, url