Electron petrography of silica polymorphs associated with pseudotachylite, Vredefort structure, South Africa [PDF]
High-pressure silica polymorphs (coesite and stishovite) were described from the Vredefort structure in association with pseudotachylite veinlets. In addition to the fundamental significance of the polymorphs to genetic interpretations of the structure ...
White, J. C.
core +1 more source
A database of Triassic conodonts from a comprehensive revisión of literature [PDF]
The revision of a comprehensive amount of bibliography has made possible the development of a database containing the stratigraphic ranges of the conodont species from the uppermost Permian and the Triassic, with a total of 336 species in 52 genera. This
Márquez Aliaga, Ana +2 more
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New evidence for a biostratigraphic assessment of the limestone succession comprising K‐bentonite levels exposed in the Yılanlı Formation of the Istanbul-Zonguldak Terrane are provided from conodonts at the Gavurpınarı quarry in Bartın area (NW Turkey).
AYŞE ATAKUL-ÖZDEMIR +4 more
doaj +1 more source
Early Permian Conodont Fauna and Stratigraphy of the Garden Valley Formation, Eureka County, Nevada [PDF]
The lower part of the Garden Valley Formation yields two distinct conodont faunas. One of late Asselian age dominated by Mesogondolella and Streptognathodus and one of Artinskian age dominated by Sweetognathus with Mesogondolella.
Chernykh, Valery V. +3 more
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Stratigraphy and Conondonts of the Upper Devonian Sequence from Two Core in Northern Iowa, September 11, 1980 [PDF]
The purpose of this investigation is to provide some lithostratigraphic and biostratigraphic information for the subsurface Devonian system in north-central and western ...
core
Stratigraphy of Upper Permian and Lower Triassic Strata of the Žiri Area (Slovenia)
The paper deals with the stratigraphy of Late Permian and Early Triassic strata of the Lukač section in the Žiri area of western Slovenia. This is the only section presently known in the External Dinarides where the Permian-Triassic boundary is defined ...
Tea Kolar-Jurkovšek +3 more
doaj
Pelagic responses to oceanic anoxia during the Carnian Pluvial Episode (Late Triassic) in Panthalassa Ocean. [PDF]
Tomimatsu Y +8 more
europepmc +1 more source
Early Carboniferous conodonts from the Vorgashor Formation on the Haruta River (Polar Urals) and interfacial correlation of the upper part of the Lower Carboniferous [PDF]
This paper presents a study of conodont assemblages from the Vorgashor Formation exposed along the Haruta River (Polar Urals). The material includes subautochthonous conodont associations recovered from hemipelagic deposits and calciturbidites in the ...
Zhuravlev A.V.
doaj
Seawater 87Sr/86Sr Stratigraphy of the Middle Ordovician in Central Virginia [PDF]
Throughout most of the past century, the correlation of strata in a region has mainly been defined through biostratigraphy, the dating of rock through fossil succession.
Newby, Sean
core
Volcanic CO2 degassing postdates thermogenic carbon emission during the end-Permian mass extinction. [PDF]
Wu Y +6 more
europepmc +1 more source

