Electron spin resonance (ESR) and thermal ionization mass spectrometric (TIMS) 230Th/234U dating of teeth in Middle Paleolithic layers at Amud Cave,Israel     

W. Jack Rink  H.P. Schwarcz  H.K. Lee  J. Rees‐Jones  R. Rabinovich  E. Hovers 《Geoarchaeology》2001,16(6):701-717

Electron spin resonance (ESR) dating and thermal ionization mass spectrometric ²³⁰Th/²³⁴U dating was conducted on six teeth from the prehistoric site of Amud Cave. By combining the ESR and ²³⁰Th/²³⁴U analyses, we obtained burial ages for teeth in various layers of the site. Layer B₁/6–7, from which the Amud I Neanderthal skeleton was recovered, is dated to 53 ± 8 ka. Layer B₂/8, which yielded other important human remains including the Amud 7 skeleton, gives a mean burial age of 61 ± 9 ka. One tooth from the lowest layer (B₄) yielded a date of 70 ± 11 ka, but another tooth from this layer gave an 113 ± 18 ka. Despite this discrepancy, these ages agree with previously published TL ages on heated flints for the corresponding layers. This agreement between ESR on tooth enamel and TL on burned flint is also seen at all other sites studied with both methods in Israel. © 2001 John Wiley & Sons, Inc.  相似文献   

Preface     

Jack Hardisty 《地球表面变化过程与地形》1997,22(13):1195-1196

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The Hunsrück Slate Konservat-Lagerstätte     

Jack T. R. Wilkin 《Geology Today》2023,39(2):72-76

The Lover Devonian Hunsrück Slate in western Germany is world-famous for its exceptionally preserved and beautiful fossils. What makes this Konservat-Lagerstätte so fascinating is its unique style of pyritization that has perfectly captured an entire ecosystem, from delicate echinoderms with preserved soft tissues to the Lovecraftian Mimetaster.  相似文献