Results 151 to 160 of about 1,166 (193)
Tracking the Hirnantian Glaciation Using Os Isotopes
Earth and Planetary Science Letters, 2010 article i nfo Article history: Here we present initial 187 Os/ 188 Os (Osi) values integrated with δ 13 Corg for the first Paleozoic section — the Ordovician/Silurian boundary GSSP at Dob's Linn, Scotland. Our 187 Os/ 188 Os data tracks major changes in climate that occurred during the Late Ordovician (Hirnantian glaciation), which coincides with the ...
Alex Finlay +2 more
exaly +4 more sources
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Hirnantian Sea-Level Changes in the Baltoscandian Basin, a Review
Palaeogeography, Palaeoclimatology, Palaeoecology, 2020Abstract Correlation of Hirnantian sections of the Baltoscandian Basin reveals four major transgressive-regressive sea-level cycles related to waxing and waning of ice sheets at high Southern Hemisphere paleolatitudes. The correlation between stratigraphic members in Estonia and Latvia shows transgressions-regressions in the first half of the ...
Tarmo Kiipli, Enli Kiipli
exaly +2 more sources
Hirnantian (Late Ordovician) Brachiopod Faunas Across Baltoscandia: A Global and Regional Context
Palaeogeography, Palaeoclimatology, Palaeoecology, 2016 A diverse, typical Hirnantia brachiopod fauna from terminal Ordovician strata in Latvia extends the distribution of the Kosov Province across much of the Baltic Palaeoplate into the deeper-water facies of the East Baltic.
Linda Hints, David Harper
exaly +2 more sources
Decreased Marine Organic Carbon Burial During the Hirnantian Glaciation
Earth and Planetary Science LettersJun-xuan Fan, Shengchao Yang
exaly +2 more sources
Taphonomy of exceptional sponge preservation in the Hirnantian Anji Biota, China
Journal of the Geological Society, 2022The Anji Biota is a unique deposit with exceptionally preserved sponges and other organisms in deep-water, uppermost Ordovician mudstone of Zhejiang Province, China. The sponge fossils preserve remarkable details including carbonaceous preservation of soft tissues and axial filaments of spicules, but the taphonomy of the deposit has not previously been
Xuejin Wu +4 more
openaire +1 more source
Steep oceanic DIC δ13C depth gradient during the Hirnantian Glaciation [PDF]
Earth-Science ReviewsThe Hirnantian carbon isotopic excursion (HICE) was characterized by a positive δ13C excursion (up to ∼ + 7‰) of oceanic dissolved inorganic carbon (DIC).
Shengchao Yang +12 more
core +3 more sources
Earth-Science Reviews, 2010 This paper proposes a global review of Hirnantian event stratigraphy. The Hirnantian GSSP in south China is tentatively correlated with latest Ordovician strata from the peri-Gondwanan "glacial" regions.
VECOLI, MARCO +3 more
exaly +2 more sources
A global synthesis of the latest Ordovician Hirnantian brachiopod faunas
Transactions of the Royal Society of Edinburgh: Earth Sciences, 1988ABSTRACTA global review of new and existing data on the distribution of uppermost Ordovician (Hirnantian) brachiopods indicates the existence of at least three biogeographically distinct faunas. The typical Hirnantia fauna characterised subtropical and temperate latitudes and comprised a variety of ecological associations; the fauna reached its acme ...
Rong Jia-yu, David A. T. Harper
openaire +1 more source
Environmental changes in the Hirnantian (upper Ordovician) of the Prague Basin, Czechoslovakia
Geological Journal, 1989AbstractSedimentary sequences through the uppermost Ordovician (Hirnantian), Kosov Formation, are described. The Kosov Formation is a shale‐dominated formation with two thin horizons of sandy diamictites near the base and two ‘flysch’ units separated by shales forming the main part of the formation, which is overlain abruptly by Silurian graptolitic ...
P. J. Brenchley, P. Štorch
openaire +1 more source
Pre‐Hirnantian Ashgill climatically warm event in the Mediterranean region
Lethaia, 2003Compilation of the marine, benthic megafossils from approximately the mid-Ashgill of the Mediterranean region, including much of Central and Southern Europe plus North Africa, and elsewhere indicates a warm interval featuring bioclastic limestone and a warm climate marine fauna.
A.J Boucot +3 more
openaire +1 more source