United States Meteorite Impact Craters

 The Alamo Impact Crater is a 44 to 65 km structure originally located in south-central Nevada.  A larger diameter is proposed in Andrew et al., 2015.  Much of the western and central portion of the structure are reported as having been largely destroyed by post-Devonian faulting, volcanism, and orogenic events.  The impact is primarily known from the Alamo Breccia rock units, which comprise a 4000 km2 to 28,000 km2 (Leroux et al., 1995; Warme et al., 1991; Pinto and Warme, 2008; Anderson, 2008) region of breccias, megabreccias, and tsunaite deposits, exposed in southern and central Nevada and in Utah.  A good summary is Morrow et al., 2005.  A portion of preserved crater rim is discussed in Pinto and Warme, 2007.  Off-limits military lands preclude investigation of some potentially associated rock units.  Rocks dated within the large, crater-like structure visible to the southwest of the indicated area in the above image are associated with much younger volcanism - the Timber Mountain Caldera.

Age: The impact has been dated by conodont studies to the early Frasnian stage of the Late Devonian, about 382 million years ago (Sandberg and Warme, 1993; Warme and Sandberg, 1995, 1996; Morrow et al., 2005).

Evidence of Impact Origin

The impact origin of each location listed on this website has been supported by unambiguous diagnostic evidence of hypervelocity impact that has been reported in a scientific (usually peer reviewed) context.  Without such evidence, a geological structure is not a confirmed impact crater.  This section, which is included for each crater on this website, is not an exhaustive list of such published evidence, but is meant to demonstrate that appropriate work has been done for each listing.

Other (suggestive) published evidence:

breccia, planar fractures, megabreccia, tsunamite deposits, modestly elevated Ir, limited morphology.

Bibliography and References:

(If links to articles don't work, don't give up. Try pasting the link shown into a search engine or searching for the article authors, title, or other reference information.  If your research leads you to additional scientific references related to this crater, please help improve this resource by sending a note with the new citation(s) to: )

Ackman B. W. (1991) Stratigraphy of the Guilmette Formation, Worthington Mountains and Schell Creek Range, southeastern Nevada. Master’s Thesis, Colorado School of Mines, 207 p.

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Anderson J. (2008) Reconstructing the Aftermath of the Late Devonian Alamo Meteor Impact in the Pahranagat Range, Southeastern Nevada. Master’s Thesis, Idaho State University. 203 pages.

Anderson J., Tapanila L. (2007) Reconstructing the Aftermath of the Late Devonian Alamo Meteor Impact in the Type Section Region of the Pahranagat Range, SE Nevada (abstract). Geological Society of America 2007 Denver Annual Meeting, GSA Abstracts with Programs, Volume 39, No. 6, p. 145

Andeson J., Tapanila L. (2008) Tracing the Meter- to Kilometer-Scale Carbonate Seafloor Topography Following the Alamo Impact Event, Late Devonian, Nevada (abstract). 2008 Joint Meeting of The Geological Society of America, Soil Science Society of America, American Society of Agronomy, Crop Science Society of America, Gulf Coast Association of Geological Societies with the Gulf Coast Section of SEPM, GSA Abstracts with Programs, Volume 40, No. 6, p.231

Aul J. L., Stock C. W., Morrow J. R., Sandberg C. A. (2010) Provenance and implications of stromatoporoids redeposited in Upper Devonian Alamo impact breccia, SE Nevada (abstract). GSA Annual Meeting and Exposition, Geological Society of America Abstracts with Programs, Volume 42, No. 5, p.173

Bliss K. M, Morrow J. R., Weber J. C., Vice M. (2009) Evaluation of XRD and Raman peak broadening in shock-metamorphosed carbonates from carbonate-target bolide impact structures (abstract #2211). Abstracts of the 40th Lunar and Planetary Science Conference.

Casier J. G., Berra I., Olempska E., Sandberg C., Préat A. (2006) Ostracods and facies of the Early and Middle Frasnian at Devils Gate in Nevada: relationship to the Alamo Event. Acta Palaeontologica Polonica, Volume 51, No. 4, pp. 813-828.

or

Chamberlain A. K. (1999) Structure and Devonian Stratigraphy of the Timpahute Range, Nevada. PhD Dissertation, Colorado School of Mines, Golden CO, 345 pages

Dennie D. P., Dulin S., Elmore R. D., Warme J. E. (2006) Paleomagnetism of the Alamo Breccia, Nevada (abstract). 2006 Philadelphia Annual Meeting of the Geological Society of America, Abstracts with Programs, Volume 38, No. 7, p.59

Dennie D. P., Elmore R. D., Dulin S. (2006) Preliminary paleomagnetic results from the deformed and dolomitized Late Devonian Alamo Breccia, Delamar Range, central Nevada (abstract). Geological Society of America South-Central Section 40th Annual Meeting, GSA Abstracts with Programs, Volume 38, No. 1, p.32

Dolgoff A. (1963) Volcanic stratigraphy of the Pahranagat area, Lincoln County, southeastern Nevada. Geological Society of America Bulletin, Volume 74, No. 7, pp. 875-899. doi: 10.1130/0016-7606(1963)74[875:VSOTPA]2.0.CO;2

Dulin S. A. (2014) Paleomagnetism as a tool for determining diagenetic, depositional, and erosional events as recorded in sedimentary and igneous rocks. PhD Dissertation, University of Oklahoma, Norman Oklahoma.

or

Dulin S. A., Elmore R. D. (2005) Paleomagnetism of Impacts in Shallow Water Carbonate Sediments: the Weaubleau-Osceola Impact and the Alamo Breccia (abstract), in Evans K. R., et al., eds., Society for Sedimentary Geology Research Conference: The Sedimentary Record of Meteorite Impacts, Abstracts with Program, pp. 13-14.

Dulin S. A., Elmore R. D., Gardner K. G. (2005) Impacts in Carbonate Target Rocks: A Paleomagnetic Study of the Weaubleau-Osceola and Alamo Breccia Impact Structures (abstract #1371). Abstracts of the 36th Lunar and Planetary Science Conference.

Estes J. E. (1992) Stratigraphy of the Devonian Guilmette Formation, Pahranagat Range, Lincoln County, Nevada. Master’s Thesis, Colorado School of Mines, Golden, Colorado. 94 pages

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Evans S., Dennie D. P., Dulin S., Elmore R. D. (2010) The Alamo Breccia as a Conduit for Remagnetizing Fluids: Testing the Hypothesis (abstract). American Association of Petroleum Geologists (AAPG) Annual Convention and Exhibition

Evans S. C., Elmore R. D., Dennie D., Dulin S. A. (2012) Remagnetization of the Alamo Breccia, Nevada. Geological Society, London, Special Publications, Volume 371, p. 145-162 doi: 10.1144/SP371.8

or

Glass B. P., Simonson B. M. (2012) Paleozoic Impact Spherule/Ejecta Layers, in Distal Impact Ejecta Layers, , pp. 321-369. Springer-Verlag Berlin Heidelberg, ISBN 978-3-540-88261-9, ISBN 978-3-540-88262-6 doi: 10.1007/978-3-540-88262-6

Harris R. S., Morrow J. R. (2007) Possible origin of enigmatic hematite inclusions in shocked quartz from the Late Devonian Alamo impact breccia (abstract). Geological Society of America 2007 Denver Annual Meeting, GSA Abstracts with Programs. Volume 39, No. 6, p.311

Hutchins K. L., Morrow J., Sandberg C. A., Harris R. S. (2010) Proximal to distal grain-size trends in hematite inclusion-rich quartz, Late Devonian Alamo impact event ,Nevada, Utah, and California (abstract). Geological Society of America 2010 Annual Meeting and Exhibition, GSA Abstracts with Programs, Volume 42, No. 5, p.306

Keith A. M., Tapanila L., Bottenberg H. C. (2013) Lithologic mapping of the Alamo impact in the Reveille Range, Nevada. Journal of the Idaho Academy of Science, Volume 49, Issue 1, p. 59

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Koeberl C., Huber H., Morgan M., Warme J. E. (2003) Search for an extraterrestrial component in the Late Devonian Alamo Impact Breccia (Nevada): Results of iridium measurements, in Koeberl C., Martinez-Ruiz F., eds., Impact markers in the stratigraphic record: Springer-Verlag, Berlin, pp. 315-332.

Kuehner H. (1997) The Late Devonian Alamo Impact Breccia, Southeastern Nevada (PhD Thesis), Colorado School of Mines. 283 pages.

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Leroux H., Warme J. E., Doukhan J.-C. (1995)  Shocked quartz in the Alamo breccia, southern Nevada: Evidence for a Devonian impact event. Geology, Volume 23, No. 11, p. 1003-1006. doi: 10.1130/0091-7613(1995)?023<1003:SQITAB>?2.3.CO;2??

Lewis K. M, Morrow J. R., Nesse W. D. (2006) Effects of shock metamorphism on XRD peak broadening in carbonate target rocks, Late Devonian Alamo Impact (abstract). Geological Society of America 2006 Philadelphia Annual Meeting, GSA Abstracts with Programs. Volume 38, No. 7, p. 298

Maroun M. G., Morrow J., Koeberl C., Sandberg C. A. (2010) Geochemical evaluation of distal, onshore channel deposits from Late Devonian, marine Alamo impact event, Nevada and Utah (abstract). Geological Society of America 2010 Annual Meeting and Exhibition, GSA Abstracts with Programs, Volume 42, No. 5, p. 171

McGhee G. R. Jr. (2001) The ‘multiple impacts hypothesis’ for mass extinction: a comparison of the Late Devonian and the late Eocene. Palaeogeography, Palaeoclimatology, Palaeoecology, Volume 176, Issues 1-4, Pages 47–58. doi:10.1016/S0031-0182(01)00325-X

Morgan M. L., Warme J. E. (2002) Carbonate accretionary lapilli in the Late Devonian Alamo breccia: impact genesis and implications for timing of ejecta emplacement (abstract). Geological Society of America 2002 Denver Annual Meeting, GSA Abstracts with Programs, Volume 34, No. 6, p. 543

Morrow J. R., Racki G., Malkowski K. (2003) Timing of Frasnian (early Late Devonian) carbon isotopic and Alamo impact events, southern Nevada (abstract). Geological Society of America 2003 Seattle Annual Meeting, GSA Abstracts with Programs, Volume 35, No. 6, p. 209.

Morrow J. R., Sandberg C. A. (2001) Distribution and characteristics of multi-sourced shock-metamorphosed quartz grains, Late Devonian Alamo impact, Nevada (abstract #1233). Abstracts of the 32nd Lunar and Planetary Science Conference

Morrow J. R., Sandberg C. A. (2001) Offshore deposits and effects of marine, Late Devonian Alamo impact event, south-central Nevada (abstract). Geological Society of America Annual Meeting, Abstracts with Programs, Volume 33, No. 6, p. 1205

Morrow J. R., Sandberg C. A. (2002) Distribution and characteristics of proximal to distal ejecta from Late Devonian Alamo impact, Nevada (abstract). Geological Society of America 2002 Denver Annual Meeting, GSA Abstracts with Programs. Vol. 34, No. 6, p. 543.

Morrow J. R., Sandberg C. A. (2003) Late Devonian Alamo impact, Nevada, USA; Multiple evidence of an off-platform marine impact(abstract #4055). Abstracts of the Third International Conference on Large Meteorite Impacts, August 5–7, 2003, Nördlingen, Germany.

Morrow J. R., Sandberg C. A. (2005) Distal, onshore effects in western Utah of marine, Late Devonian Alamo impact event (abstract). Geological Society of America Rocky Mountain Section 57th Annual Meeting, GSA Abstracts with Programs, Volume 37, No. 6, p. 5

Morrow J. R., Sandberg C. A. (2005) Revised dating of Alamo and some other Late Devonian impacts in relation to resulting mass extinction (abstract #5148). Abstracts of the 68th Annual Meteoritical Society Meeting.

Morrow J. R., Sandberg C. A. (2006) Onshore record of marine impact-generated tsunami, 382 Ma Alamo Event, Nevada and Utah, USA (abstract). Impact craters as indicators for planetary environmental evolution and astrobiology, Östersund, Sweden, conference Abstracts volume, p. 2.

no link found 

Morrow J. R., Sandberg C. A. (2007) Upper Devonian, Marine Impact-Generated Tsunami Beds in Inner Carbonate-Platform Settings, Central Great Basin (abstract). American Association of Petroleum Geologists 2007 Annual Convention, Long Beach, California

Morrow J. R., Sandberg C. A. (2008) Evolution of Devonian carbonate-shelf margin, Nevada. Geosphere, April 2008Volume 4, No. 2, p. 445-458. DOI: 10.1130/GES00134.1

Morrow J. R., Sandberg C. A. (2009) California or bust: recognition and significance of Late Devonian Alamo impact deposit near Death Valley (abstract). Geological Society of America 2009 Portland Annual Meeting, GSA Abstracts with Programs, Volume 41, No. 7, p. 532.

Morrow J. R., Sandberg C. A., Harris A. G. (2004) New evidence of size and marine site of Late Devonian Alamo impact, southern Nevada (abstract). Geological Society of America 2004 Denver Annual Meeting, GSA Abstracts with Programs, Volume 36, No. 5, p. 265.

Morrow J. R., Sandberg C. A., Harris A. G. (2005) Late Devonian Alamo Impact, southern Nevada, USA: Evidence of size, marine site, and widespread effects, Geological Society of America Special Paper 384, p. 259-280. doi: 10.1130/0-8137-2384-1.259

Morrow J. R., Sandberg C. A., Poole F. G. (2001) New evidence for deeper water site of Late Devonian Alamo impact, Nevada (abstract #1018). Abstracts of the 32nd Lunar and Planetary Science Conference.

Morrow J. R., Sandberg C. A., Poole F. G. (2002) Deep-water deposits of Late Devonian Alamo impact breccia, northern Reveille and southern Hot Creek ranges, Nevada (abstract). Geological Society of America Rocky Mountain Section 54th Annual Meeting, GSA Abstracts with Programs. Volume 33, No. 4, p. 52

Morrow J. R., Sandberg C. A., Warme J. E., Kuehner H.-C. (1998) Regional and possible global effects of sub-critical Late Devonian Alamo Impact Event, Southern Nevada, USA. Journal of the British Interplanetary Society, Volume 51, No. 12, pp. 451-460.

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Morrow J. R., Sandberg C. A., Ziegler W. (1999) Recognition of mid-Frasnian (early Late Devonian) oceanic impacts: Alamo, Nevada, USA, and Amönau, Hessen, Germany, in Gersonde R., and Deutsch A., eds., Oceanic Impacts: Mechanisms and Environmental Perturbations: Berichte zur Polarforschung 343, Bremerhaven, Germany, pp. 66-69

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Morrow J. R., Warme J. E., Pinto J. A., Sandberg C. A. (2008) Impact Processes and Products of the Marine Alamo Event, Southeastern Nevada and Western Utah (abstract). Geological Society of America 2008 Joint Meeting of The Geological Society of America, Soil Science Society of America, American Society of Agronomy, Crop Science Society of America, Gulf Coast Association of Geological Societies with the Gulf Coast Section of SEPM, GSA Abstracts with Programs, Volume 40, No. 6, p. 379

Myers R. (2011) Evaluating the controls on deposition of Devonian the Upper Alamo Breccia and overlying strata, Timpahute Range, Nevada. Master's Thesis, Idaho State University, 186 pages

Myers R. A., Tapanila L. (2010) Two-stage tsunami resurge deposition in the wake of the Alamo impact, Lincoln County, Nevada (abstract). Geological Society of America 2010 Annual Meeting and Exhibition, GSA Abstracts with Programs. Volume 42, No. 5, p. 306

Ormö J., Martinez-Frias J., Diaz-Martinez E., Lepinette-Malvitte A., Lindström M., CLAEX team (2004) Experiments with explosives and ordnance disposal devices for the simulation of specific processes during shallow-marine impacts (abstract #1276). Abstracts of the 35th Lunar and Planetary Science Conference.

Pinto J. A. (2006) Alamo Impact Event, Late Devonian, Nevada: Crater Phenomena and Distal Products. PhD Dissertation, Colorado School of Mines, Golden, Colorado, 191 p.

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Pinto J. A., Warme J. E. (2004) Crater stratigraphy and carbonate impact signatures, Late Devonian Alamo event, Nevada (abstract). Geological Society of America 2004 Denver Annual Meeting, GSA Abstracts with Programs, Volume 36, No. 5, p. 265.

Pinto J. A., Warme J. E. (2006) Alamo impact crater documented (abstract #2453). Abstracts of the 37th Lunar and Planetary Science Conference.

Pinto J. A., Warme J. E. (2007) Alamo Event, Nevada: Crater stratigraphy and impact breccia Realms, in Evans K. R., Horton J. W. Jr., King D. T. Jr., Morrow J. R. (eds.), The Sedimentary Record of Meteorite Impacts: Geological Society of America Special Paper 437, pp. 99-137. doi: 10.1130/2008.2437(07)

Poole F. G., Sandberg C. A. (2015) Unusual central Nevada geologic terranes produced by Late Devonian Antler Orogeny and Alamo Impact, Geological Society of America Special Papers No. 517. ISBN: 978-0-8137-2517-8 DOI: 10.1130/9780813725178

Racki G. (2012) The Alvarez impact theory of mass extinction; limits to its applicability and the “great expectations syndrome”. Acta Palaeuntulugica Polonica, Volume 57, No. 4, pp. 681–702.

Rendall B. E., Tapanila L. (2012) Benthic ecosystem recovery following the Alamo impact event: a preliminary assessment (abstract). Geological Society of America 2012 Annual Meeting and Exposition, GSA Abstracts with Programs, Volume 44, No. 7, p. 277.

Retzler A., Tapanila L. (2012) Transect through post-impact sediments deposited in the outer rim and annular trough of the Alamo impact crater, Nevada (abstract). Geological Society of America 2012 Annual Meeting. GSA Abstracts with Programs, Volume 44, No. 7, p. 277

Retzler A. J. (2013) Post-impact depositional environments as a proxy for crater morphology, Late Devonian Alamo impact event, Nevada. Master's Thesis, Department of Geosciences, Idaho State University, Moscow, Idaho. 94 pages.

Retzler A. J., Tapanila L., Steenberg J. R., Johnson C. J., Myers R. A. (2015) Post-impact depositional environments as a proxy for crater morphology, Late Devonian Alamo impact, Nevada. Geosphere, Volume 11, No. 1, p. 123-143.? doi: 10.1130/GES00964.1

Sandberg C. A., Morrow J. R. (1998) Role of conodonts in deciphering and dating Late Devonian Alamo Impact Megabreccia, southeastern Nevada, USA, in Bagnoli G., ed., Seventh International Conodont Symposium, Europe (ECOS VII), Bologna-Modena, Italy, Abstracts Volume, p. 93-94.

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Sandberg C. A., Morrow J. R. (2007) Late Devonian 382 MA Alamo impact: proximal and distal effects, Nevada and Utah (abstract). Geological Society of America 2007 Denver Annual Meeting, GSA Abstracts with Programs, Volume 39, No. 6, p. 372.

Sandberg C. A., Morrow J. R., Harris A. G. (2007) Ejected Devonian to Cambrian conodonts redeposited in Late Devonian Alamo impact breccia, southern Nevada (abstract). Geological Society of America Joint South-Central and North-Central Section 41st Annual Meeting, GSA Abstracts with Programs, Volume 39, No. 3, p. 62

Sandberg C. A., Morrow J. R., Warme J. E. (1997) Late Devonian Alamo Impact Event, global Kellwasser events, and major eustatic events, eastern Great Basin, Nevada and Utah, in Geological Society of America 1997 Annual Meeting Field Trip Guidebook, Salt Lake City, Utah, Link P. K, Kowallis B. J., eds., Brigham Young University Geology Studies, Volume 42, part 1, pp. 129-160.

or

Sandberg C. A., Morrow J. R., Ziegler W. (2002) Late Devonian sea-level changes, catastrophic events, and mass extinctions, in Koeberl C., MacLeod K. G., eds., Catastrophic Events and Mass Extinctions, Geological Society of America Special Papers, Volume 356, p. 473-487. doi: 10.1130/0-8137-2356-6.473

Sandberg C. A., Morrow J. R., Poole F. G., Ziegler W. (2003) Middle Devonian to Early Carboniferous event stratigraphy of Devils Gate and northern Antelope range sections, Nevada, USA, in Proceedings Volume of the 15th International Senckenberg Conference, Frankfurt, May 11-21, 2001. Joint Meeting: International Geolog. Correlation Programme IGCP, No. 421 and Subcomm. on Devonian Stratigraphy SDS, Courier Forschungsinstitut Senckenberg, Volume 242, pp. 187-207. ISBN 978-3-510-61350-2

Sandberg C. A., Poole F. G., Morrow J. R. (2005) Milk Spring channels provide further evidence of oceanic, >1.7 km deep Late Devonian Alamo crater, southern Nevada (abstract #1538). Abstracts of the 36th Lunar and Planetary Science Conference.

Sandberg C. A., Warme J. E. (1993) Conodont dating, biofacies, and catastrophic origin of Late Devonian (Early Frasnian) Alamo Breccia, southern Nevada, Geological Society of America Abstracts with Programs, Volume 25, No. 3, p. 77.

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Sandberg C. A., Ziegler W., Morrow J. R. (2000) Late Devonian events and mass extinctions (abstract #3016). Abstracts of the Catastrophic Events and Mass Extinctions: Impacts and Beyond conference, Vienna, July 9-12, 2000.

Schedl A. (2015) Searching for Distal Ejecta on the Craton: The Sedimentary Effects of Meteorite Impact. The Journal of Geology, Volume 123, No. 3, pp. 201-232. doi: 10.1086/681624

Schieber J. (2003) Disturbed beds in Lower Frasnian black shales of Tennessee and Kentucky: their possible connection to impacts (abstract). Geological Society of America 2003 Seattle Annual Meeting, GSA Abstracts with Programs, Volume 35, No. 6, p. 209

Sheffield J. W. (2011) Reassessing Stratigraphic Patterns of the Alamo Impact Deposits Using a Relational Database and GIS Analytical Tools, Lincoln County, Nevada. Master's Thesis, Department of Geosciences, Idaho State University, Moscow, Idaho. 103 pages.

Sheffield J. W., Tapanila L. (2012) Quantitative stratigraphic modeling of the Late Devonian Alamo impact, eastern Nevada (abstract). Geological Society of America 2012 Annual Meeting and Exposition, GSA Abstracts with Programs, Volume 44, No. 7, p. 535

Sheffield J. W., Tapanila L., Ames D. P. (2010) GIS modeling of the detachment and collapse of a carbonate platform following the Late Devonian Alamo impact event, Lincoln County, Nevada (abstract). Geological Society of America 2010 Annual Meeting and Exhibition, GSA Abstracts with Programs, Volume 42, No. 5, p. 306

Sim M. S., Ono S., Hurtgen M. T. (2013) Contrasting sulfur isotope records during the Late Devonian punctata and Upper Kellwasser events (abstract #PP33B-1927). American Geophysical Union, Fall Meeting.

Sim M. S., Ono S., Hurtgen M. T. (2015) Sulfur isotope evidence for low and fluctuating sulfate levels in the Late Devonian ocean and the potential link with the mass extinction event. Earth and Planetary Science Letters, Volume 419, 1 June 2015, Pages 52–62. doi:10.1016/j.epsl.2015.03.009

Stock C. W., Sandberg C. A. (2013) Frasnian stromatoporoid-coral reef above Alamo impact storm-related backwash channel, Needle Range, western Utah (abstract). Geological Society of America 2013 Annual Meeting, GSA Abstracts with Programs, Volume 45, No. 7, p. 247.

Tapanila L. (2006) From a meteor impact to a reef ecosystem: Late Devonian benthic recovery following the Alamo Impact in Nevada (abstract). Geological Society of America 2006 Annual Meeting, Abstracts with Programs, Volume 38, No. 7, p. 403.

Tapanila L., Anderson J. R. (2007) Survey of ichnological response following the Late Devonian Alamo impact event, southeastern Nevada (abstract). Geological Society of America 2007 Denver Annual Meeting, GSA Abstracts with Programs, Volume 39, No. 6, p. 206

Tapanila L., Ekdale A. A. (2004) Impact of an impact: benthic recovery immediately following the Late Devonian Alamo Event (abstract). Geological Society of America 2004 Denver Annual Meeting, GSA Abstracts with Programs, Volume 36, No. 5, p. 313

Tapanila L., Rendall B. E. (2013) Good times after an impact: benthic communities following the Late Devonian Alamo impact, SE Nevada (abstract #222-5). Geological Society of America 2013 Annual Meeting in Denver: 125th Anniversary of GSA, GSA Abstracts with Programs, Volume 45, No. 7, p. 533.

Tapanila L., Sheffield J., Thomason C., Myers R. A. (2011) The Hiko Scarp: a paleo-topographic bounary marking the outer rim fault of the Alamo impact crater, Nevada (abstract). Geological Society of America 2011 Annual Meeting and Exhibition, GSA Abstracts with Programs, Volme 43, No. 5, p. 189

Tapanila L., Steenberg J. R., Johnson C. J., Myers R. A. (2014) The seafloor after a bolide impact: sedimentary and biotic signatures across the Late Devonian carbonate platform following the Alamo Impact Event, Nevada, USA. Facies, Volume 60, Issue 2, pp. 615-629. doi: 10.1007/s10347-014-0398-0

Tapanila L., Thomason C., Anderson J. (2009) Mapping the post-impact surface of the Late Devonian Alamo event, Nevada (abstract). Geological Society of America 2009 Annual Meeting, GSA Abstracts with Programs, Volume 41, No. 7, p. 532.

Thomason C. J. (2010) Recovery of the carbonate platform and fauna in the aftermath of the Late Devonian Alamo Impact, Hiko Hills Range, Southeastern Nevada. Master's Thesis, Department of Geosciences, Idaho State University, Moscow, Idaho. 257 pages.

Thomason C., Tapanila L. (2009) Post-impact deposition at the edge of the Late Devonian Alamo breccia, SE Nevada (abstract). Geological Society of America Rocky Mountain Section 61st Annual Meeting, GSA Abstracts with Programs, Volume 41, No. 6, p. 15

Warme J. E. (1994) Catastrophic Alamo Breccia, Upper Devonian, Southeastern Nevada (abstract). Abstracts of the New Developments Regarding the KT Event and Other Catastrophes in Earth History conference, Lunar and Planetary Institute and the University of Houston.

Warme J. E. (2000) Anatomy of an Anomaly: The Catastrophic Devonian Alamo Impact Breccia, Nevada (abstract). 2000-2001 American Association of Petroleum Geologists (AAPG) Distinguished Lectures

Warme J. E. (2004) The Many Faces of the Alamo Impact Breccia, Geotimes - Newsmagazine of the Earth Sciences, American Geological Institute, January 2004 issue.

Warme J. E., Chamberlain A. K. (1997) Carbonate Facies, Sequence Characteristics, and Reservoir Potential of Devonian Formations, Eastern Nevada and Adjoining Areas (abstract). Abstracts of the 1997 American Association of Petroleum Geologists (AAPG) International Conference and Exhibition, Vienna, Austria.

Warme J. E., Chamberlain A. K. (2000) Primary ejecta, tsunami reworking, tectonic dismemberment: reconstructing the Late Devonian Alamo breccia and crater, Nevada (abstract #3069). Abstracts of the Catastrophic Events and Mass Extinctions: Impacts and Beyond conference, Vienna, July 9-12, 2000.

Warme J. E., Chamberlain A. K., Ackman B. W. (1991) The Alamo Event: Devonian cataclysmic breccia in southeastern Nevada. Geological Society of America Abstracts with Programs, Volume 23, No. 2, p. 108.

no link found

Warme J. E., Kuehner H.-C. (1998) Anatomy of an anomaly: the Devonian catastrophic Alamo impact breccia of southern Nevada. International Geology Review, Volume 40, Issue 3, pp. 189-216. DOI:10.1080/00206819809465206

Warme J. E., Morgan M., Kuehner H.-C. (2002) Impact-generated carbonate accretionary lapilli in the Late Devonian Alamo Breccia, in Koeberl C., and MacLeod K. G., eds., Catastrophic Events and Mass Extinctions: Impacts and Beyond: Boulder, Colorado, Geological Society of America Special Papers, Volume 356, pp. 489–504. doi: 10.1130/0-8137-2356-6.489

Warme J. E., Morrow J. R. (2010) Alamo Impact Breccia: Ring Realm Processes and Products (abstract). Abstracts of the 2009 American Association of Petroleum Geologists (AAPG) Annual Convention and Exhibition, Denver, Colorado, USA.

Warme J. E., Morrow J. R., Pinto J. A. (2008) Processes and products of the marine Alamo impact event, central Great Basin, western USA (abstract #3038). Abstracts of the Lunar and Planetary Institute, 4th Large Meteorite Impacts and Planetary Evolution conference.

Warme J. E., Morrow J. R., Pinto J. A. (2009) Evolution of the Alamo impact event: from five second to five minutes (abstract). Geological Society of America 2009 Portland Annual Meeting, GSA Abstracts with Programs, Volume 41, No. 7, p. 532

Warme J. E., Morrow J. R., Sandberg C. A. (2008) Devonian carbonate platform of eastern Nevada; facies, surfaces, cycles,sequences, reefs, and cataclysmic Alamo impact breccias. Geological Society of America (GSA) Field Guides 2008, Volume 11, pp. 215-247. doi: 10.1130/2008.fld011(10)

Warme J. E., Pinto J. A. (2005) Alamo enigmas: Too much area and volume, too little crater and symmetry, in Evans K. R., et al., eds., Society for Sedimentary Geology Research Conference: The Sedimentary Record of Meteorite Impacts Abstracts with Program, pp. 31-57.

Warme J. E., Pinto J. A. (2012) Alamo seismite styles: proximal to distal across 150 km (abstract). Geological Society of America 2012 Annual Meeting and Exposition, GSA Abstracts with Programs, Volume 44, No. 7, p. 535

Warme J. E., Sandberg C. A. (1995) The catastrophic Alamo breccia of southern Nevada: Record of a Late Devonian extraterrestrial impact. Courier Forchsinstitut Senckenberg, Volume 188, W. Ziegler Commemorative Volume, pp. 31-57.

no link found

Warme J. E., Sandberg C. A. (1996) Alamo megabreccia: Record of a Late Devonian impact in southern Nevada. Geological Society of America, GSA Today, Volume 6, No. 1, pp. 1-7.

ftp://rock.geosociety.org/pub/GSAToday/gt9601.pdf

or

Warme J. E., Yarmonto, Chamberlain A. K., Ackman B. W. (1993) The Alamo event: cataclysmic Devonian breccia, southeastern Nevada, in Gillespie C. W., ed., Structural and stratigraphic relationships of Devonian reservoir rocks, east central Nevada: Field Trip Guidebook, Nevada Petroleum Society, Inc., Reno, NV, pp. 157-170.

Wilson K., Tapanila L., Bottenberg H. C. (2013) Lithological discrimination of impact crater deposits Halo range, SE Nevada. Journal of the Idaho Academy of Science, Volume 49, No. 1, p. 27.

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Yarmonto (1992) Sedimentologic and stratigraphic setting of a Devonian carbonate breccia, Northern Pahranagat Range Nevada, Master’s Thesis, Colorado School of Mines, Golden, Colorado.

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