Zobrazeno 1 - 10
of 17
pro vyhledávání: '"H. H. J. Geldsetzer"'
Publikováno v:
Palaeogeography, Palaeoclimatology, Palaeoecology. 104:81-95
The Frasnian-Famennian (F-F) extinction event occurs in platformal carbonates along the Trout River, N.W.T. Paleogeographically the site was about 150 km east of the western cratonic margin. Faunal evidence, based primarily on corals, and sedimentati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6becc9bf7f2040e6241c82a734d42d54
https://doi.org/10.1016/0031-0182(93)90121-x
https://doi.org/10.1016/0031-0182(93)90121-x
Publikováno v:
Geology. 24:187
Stable isotopes of carbonate and organic carbon from two Upper Devonian sections in Alberta, Canada, indicate a “heavy carbon event” across the Frasnian-Famennian (F-F) boundary and a negative δ 13 C shift at the boundary. At Cinquefoil Mountain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::acda15d981144d2ca085a648b7611867
https://doi.org/10.1130/0091-7613(1996)024<0187:casiaa>2.3.co
https://doi.org/10.1130/0091-7613(1996)024<0187:casiaa>2.3.co
Publikováno v:
Geology. 22:580
The Permian-Triassic (P-T) extinction is documented geochemically in a marine sequence deposited in a basinal setting at Williston Lake, northeastern British Columbia, by using elemental and isotopic organic geochemical data from well-preserved sedim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f661cbf481623d34027b2423148f3f30
https://doi.org/10.1130/0091-7613(1994)022<0580:pteoce>2.3.co
https://doi.org/10.1130/0091-7613(1994)022<0580:pteoce>2.3.co
Autor:
Charles J. Orth, Brian D. E. Chatterton, H. H. J. Geldsetzer, Kun Wang, Moses Attrep, Hongfei Hou
Publikováno v:
Geology. 19:776
A strong {delta}{sup 13}C anomaly coincides with a weak Ir anomaly at the Frasnian/Famennian (F/F) boundary exposed at Xiangtian, Guangxi, south China. The maximum whole-rock Ir abundance is 0.23 ppb (0.35 ppb on a carbonate-free basis) compared with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::906650ef7b34e2ab833a4bb9ca5cbebd
https://doi.org/10.1130/0091-7613(1991)019<0776:gefacb>2.3.co
https://doi.org/10.1130/0091-7613(1991)019<0776:gefacb>2.3.co
Autor:
H. H. J. Geldsetzer, Gilbert Klapper, Digby J. McLaren, Michael J. Orchard, Wayne D. Goodfellow
Publikováno v:
Historical Biology. 2:51-72
The F‐F extinction is known on four continents by the sudden disappearance of shelly benthos, although questions remain regarding precisely when and therefore how suddenly it took place. Studies sh...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69b124ca64b85ec91dcb1df37cec2406
https://doi.org/10.1080/08912968909386490
https://doi.org/10.1080/08912968909386490