Results 11 to 20 of about 47,008 (268)

Large Igneous Province Record Through Time and Implications for Secular Environmental Changes and Geological Time‐Scale Boundaries

open access: yesGeophysical Monograph Series, Page 1-26., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst   +8 more
wiley  

+17 more sources

Pre-Carpels from the Middle Triassic of Spain. [PDF]

open access: yesPlants (Basel), 2022
In stark contrast to the multitude of hypotheses on carpel evolution, there is little fossil evidence testing these hypotheses. The recent discovery of angiosperms from the Early Jurassic makes the search for precursors of angiosperm carpels in the Triassic more promising. Our light microscopic and SEM observations on Combina gen.
Santos AA, Wang X.
europepmc   +5 more sources

Calcareous Nannofossils in Middle Triassic (Anisian)-A preliminary note

open access: yesGeologija, 1991
In this note nannofossils of Anisian age are reported in a Middle Triassic flysch sequence in southern Montenegro (Dinarides). The rich and various nannofossils are largely different from those described either in Paleozoic-Upper Triassic or in younger ...
Paola De Capoa, Rajka Radoičić
doaj   +4 more sources

Middle Triassic Paleosols and paleoclimate of Antarctica [PDF]

open access: yesJournal of Sedimentary Research, 1998
The Lashly Formation in the Allan Hills of southern Victoria Land, Antarctica, is now at a latitude of 768S and during the Middle Triassic was at least 708S. The combined evidence of fossil roots and soils indicates a paleoclimate unusual for such a high latitude.
Retallack, G.J.   +1 more
openaire   +4 more sources

Middle Triassic Limestones as a Source of Trace Elements and REY. [PDF]

open access: yesMaterials (Basel)
The results of the content determination of the selected trace elements Ti, Sr, Ba, Zn, Pb, Cu, S, P, Cr, Cd, Ni, Zr, Mo, Rb, Sc, Y, and REEs were presented in this article. Studies were carried out to define the purity of limestones. The elements were measured in the carbonate minerals of Middle Triassic limestones of the Opole Silesia in Poland ...
Stanienda-Pilecki K   +3 more
europepmc   +3 more sources

THERMAL MATURITY ASSESSMENT OF MIDDLE TRIASSIC ROCKS AND HEAT FLOW MODELING IN AGATOVO-SUHINDOL AREA (CENTRAL NORTH BULGARIA) [PDF]

open access: yesActa Geobalcanica, 2015
The study area is in the Moesian Platform and more precisely in its southern most subsided part – South Moesian Platform Margin. The research object is Triassic section reached by boreholes in the Agatovo and Suhindol countryside area.
Nikola Botoucharov, Megi Angelova
doaj   +1 more source

Anisian (Middle Triassic) Conodonts of the Kocaeli Triassic, Western Turkey

open access: yesJournal of Earth Science, 2021
The present study of Anisian (Middle Triassic) conodonts from the Kocaeli Peninsula (western Turkey) encompasses over 10 species of the families Gondolellidae and Gladigondolellidae, providing Early and Middle Triassic time constraints, Chiosella timorensis (Nogami, 1968); Cornudina oezdemirae Gedik, 1975; Gladigondolella tethydis (Huckriede, 1958 ...
openaire   +2 more sources

Diverse growth rates in Triassic archosaurs-insights from a small terrestrial Middle Triassic pseudosuchian. [PDF]

open access: yesNaturwissenschaften
AbstractThe small pseudosuchian Benggwigwishingasuchus eremacarminis was found in Anisian (Middle Triassic) marine sediments. Neither the skeleton nor osteohistology or microanatomy shows any secondary aquatic adaptations, and a dominantly terrestrial lifestyle of this new taxon is evident. Bone tissue consists of a scaffold of parallel-fibered matrix,
Klein N.
europepmc   +3 more sources

First 'Rauisuchian' archosaur (Pseudosuchia, Loricata) for the Middle Triassic Santacruzodon assemblage zone (Santa Maria Supersequence), Rio Grande do Sul State, Brazil. [PDF]

open access: yesPLoS ONE, 2015
The 'Rauisuchia' are a group of Triassic pseudosuchian archosaurs that displayed a near worldwide distribution. In Brazil, their fossils are found only in the Santa Maria Formation (Paraná Basin) of the Rio Grande do Sul State, specifically in the Middle
Marcel B Lacerda   +2 more
doaj   +1 more source

Middle Triassic (Anisian-Ladinian) Palynomorphs [PDF]

open access: yesJournal of Micropalaeontology, 1985
Abstract. Initial results of the palynostratigraphical research in the Triassic of northeast Libya indicate the presence of Middle Triassic in several deep-wells. There is some evidence that the uppermost part of the Early Triassic (Late Scythian) as well as the early part of the Late Triassic (Karnian) may also be present.
Brugman, W. A.   +2 more
openaire   +2 more sources

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