[meteorite-list] New Paper About Bloody Creek Structure, Nova Scotia
There is a new paper about Bloody Creek structure. It is: Spooner, I., P. Pufahl, T. Brisco, J. Morrow, M. Nalepa, P. Williams, and G. Stevens, 2015, The North structure: evidence for a second possible impact event at the Bloody Creek site, Nova Scotia, Canada. Atlantic Geology, vol 51, pp. 44-50. DOI: http://dx.doi.org/10.4138/atlgeol.2015.002 https://journals.lib.unb.ca/index.php/ag/issue/view/1723 https://journals.lib.unb.ca/index.php/ag/article/view/22375 “The North structure is a discontinuous, partially flooded elliptical basin 250 m in diameter and defined by arcuate scarps. It is located in Annapolis County, Nova Scotia, approximately 1 km north of the Bloody Creek structure, a possible 400 m-diameter elliptical impact crater.” “What is lacking from the North and Bloody Creek sites is a convincing petrographic record of shock metamorphic effects, a problem that clearly needs further investigation.” “Both structures are interpreted to be post-Pliocene (<2.6 Ma), based on the unlikelihood of their preservation during Cretaceous-Paleogene regional peneplanation.” They also note that preservation of pre-Pleistocene saprolites beneath glacial tills as thick as 1–6 m at locations within 10 km of the proposed suggests that glacial erosion processes were not uniform in the region of both landforms. alternatively, they argued the “…well-preserved scarps and low depth-diameter morphometry…” of these features “…might possibly be the product of impact onto thin, stagnant glacial ice…” 14,000 to 12,000 calendar years ago. They conclude that much work remains to be done. Yours, Paul H. __ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] Where Is Permian-Triassic Extinction Event in South Africa?
The Dicynodon-Lystrosaurus Assemblage Zone Boundary May Not Approximate the Marine-Defined Permo-Triassic Extinction Event by Bill Parker,Chinleana, August 29, 2015 http://chinleana.fieldofscience.com/2015/08/the-dicynodon-lystrosaurus-assemblage.html http://chinleana.fieldofscience.com The paper is: Gastaldo, R. A., S. L. Kamo, J. Neveling, J. W. Geissman, M. Bamford, and C. V. Looy, 2015, Is the vertebrate-defined Permian-Triassic boundary in the Karoo Basin, South Africa, the terrestrial expression of the end-Permian marine event? Geology (Advanced Online). doi: 10.1130/G37040.1 http://geology.gsapubs.org/content/early/2015/08/28/G37040.1.abstract Yours, Paul H. __ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] Asteroids boiled young Earth’s oceans. High temperatures shaped life’s early evolution
Did a massive asteroid turn Earth into a boiling 'Spring' 3.3 billion years ago? Daily Mail Online. http://www.dailymail.co.uk/sciencetech/article-3096111/Did-massive-asteroid-turn-Earth-boiling-SPRING-3-3bn-years-ago-Impact-vapourised-planet-s-oceans.html “Scientists found evidence for huge asteroid impacts up to 3.3 billion years ago. These may have superheated the atmosphere and raised the temperature and after losing 100 m of water, Earth would have resembled a 'hot spring.” Asteroids boiled young Earth’s oceans. High temperatures shaped life’s early evolution by thomas summers https://student.societyforscience.org/article/asteroids-boiled-young-earth’s-oceans The paper is: Lowe, D. R., and G. R. Byerly, 2015, Geologic record of partial ocean evaporation triggered by giant asteroid impacts, 3.29–3.23 billion years ago. Geology. First published online May 7, 2015, doi: 10.1130/G36665.1 http://geology.gsapubs.org/content/early/2015/05/07/G36665.1.abstract Dr. Donald Lowe’s Publications https://profiles.stanford.edu/donald-lowe?tab=publications Yours, Paul H. __ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] AD-ebay auctions ending soon
Aloha meteorite afficianados, Big Kahuna is offering some very nice, high quality, authentic space rocks on eBay in auction ending beginning at 8:00am Pacific / 11:00am Eastern / 4:00pm London / 6:00pm Helsinki / 11:00pm Singapore, with FREE Worldwide shipping on select meteorites. NWA 8277 Lunar 4.24g complete individual - http://tinyurl.com/qhzkpzl NWA 8277 Lunar 0.57g slice, $1 start bid - http://tinyurl.com/o2xkx5u NWA 7397 Mars 1.06g polished endcut - http://tinyurl.com/odkxzlh NWA x OC 752g Desert varnished beauty - http://tinyurl.com/oblms52 Allende CV3 178.15g crusted individual - http://tinyurl.com/pcyrenb Winona Win 0.09g Rare - $4 current bid - http://tinyurl.com/p6akaes Sikhote Alin IIAB 148.17g Killer shape - http://tinyurl.com/p4oeqz2 Aussi Pallasite cast of new Victoria/SA find - http://tinyurl.com/nbh5omb Too many to list all, several $1 starting bid items still at insanely low bids. See all the Big Kahuna’s offerings here: http://www.ebay.com/sch/fujmon/m.html Gary Fujihara Big Kahuna Meteorites Inc. PO Box 4175, Hilo, HI 96720 (808) 640-9161 http://bigkahuna-meteorites.com/ http://www.ebay.com/sch/fujmon/m.html __ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] AD - ebay: Meteorite Thin Sections: Chelyabinsk, Murchison, Vulcan, Trenzano, rare Achondrites, ...
Hello All, on ebay - ending in about one day - I have 12 very nice meteorite thin sections. Please have a look: http://kuerzer.de/WSULrgba8 Thank you, Peter Peter Marmet - IMCA #2747 http://www.thinsections.ch http://www.marmet-meteorites.com __ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] Meteorite Picture of the Day
Today's Meteorite Picture of the Day: LDG Contributed by: Wayne Harrigan http://www.tucsonmeteorites.com/mpodmain.asp?DD=09/05/2015 __ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
