Results 31 to 40 of about 5,309 (164)

On the Distribution of Lower Triassic Faunas [PDF]

open access: yesThe Journal of Geology, 1912
No formation has added more in recent years to our knowledge of ancient faunal geography than the Lower Triassic. In this epoch we now know three distinct and widely distributed interregional faunal zones, which are truly bench-marks in correlation. These are in sequence upward: (i) the Meekoceras zone; (2) the Tirolites zone; (3) the Columbites zone ...
openaire   +1 more source

Conodont Paleoecology of Lower Triassic Thaynes Formation: ABSTRACT [PDF]

open access: yesAAPG Bulletin, 1983
The Lower Triassic (Smithian) Thaynes Formation represents a broad spectrum of paleoenvironments. Samples arranged along a generalized depth-salinity environmental gradient from tidal flats to a relatively deep, commonly dysaerobic, basin yielded a conodont fauna of 30 form elements.
openaire   +1 more source

The sauropodomorph biostratigraphy of the Elliot Formation of southern Africa: Tracking the evolution of Sauropodomorpha across the Triassic–Jurassic boundary [PDF]

open access: yesActa Palaeontologica Polonica, 2017
The latest Triassic is notable for coinciding with the dramatic decline of many previously dominant groups, followed by the rapid radiation of Dinosauria in the Early Jurassic.
Blair W. McPhee   +3 more
doaj   +1 more source

REDESCRIPTION OF ‘PERLEIDUS’ (OSTEICHTHYES, ACTINOPTERYGII) FROM THE EARLY TRIASSIC OF NORTHWESTERN MADAGASCAR

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2017
The revision of the material from the Lower Triassic fossil-bearing-nodule levels from northwestern Madagascar supports the assumption that the genus Perleidus De Alessandri, 1910 is not present in the Early Triassic.
GIUSEPPE MARRAMÀ   +3 more
doaj   +1 more source

Palynological and Stratigraphical Problems of Middle Triassic Siliciclastics from Croatian Off-shore Well Susak More-1 (Adriatic Sea) and NW Slovenia

open access: yesGeologia Croatica, 2010
The palynological assemblages from Slovenian Middle Triassic sections and Susak More-1 off-shore well always contain Permian, Scythian and Scythian-Lower Anisian palynomorphs.
Georg Jerinić, Bogomir Jelen
doaj   +1 more source

Indication of natural gas migration and accumulation by three-dimensional fluorescence characteristics of gas-field waters: A case study of the Permian-Triassic in the central-western Sichuan Basin

open access: yesPetroleum Exploration and Development, 2012
Permian-Triassic natural gas migration paths and accumulation patterns in the central-west Sichuan region have been studied by way of examining the three-dimensional shape, light intensity excitation and fingerprint characteristics of aromatic ...
Wei LI
doaj   +1 more source

PROVENANCE OF THE BOEVAYA GORA SECTION (SOUTHERN CIS-URALS) AT THE PERMIAN-TRIASSIC BOUNDARY AS A CONSEQUENCE OF THE PALEO-URALS EVOLUTION

open access: yesГеодинамика и тектонофизика
On one hand, heavy minerals of terrigenous rocks make it possible to obtain unique information on configuration of the direction of clastic sediment transport into the basin and on the other to reconstruct the time for erosion of petrocomplexes of the ...
A. V. Chistyakova   +4 more
doaj   +1 more source

A mysterious giant ichthyosaur from the lowermost Jurassic of Wales [PDF]

open access: yesActa Palaeontologica Polonica, 2015
Ichthyosaurs rapidly diversified and colonised a wide range of ecological niches during the Early and Middle Triassic period, but experienced a major decline in diversity near the end of the Triassic.
Jeremy E. Martin   +7 more
doaj   +1 more source

Power increase of the power plant with single-circuit ORC plant with a wet medium, supplied with water in appropriate proportions from the Lower and Middle Triassic Reservoirs

open access: yesE3S Web of Conferences, 2018
This article presents an analysis of the efficiency of the ORC power plant with a wet circulating medium. The power plant is supplied from two heat sources, which are geothermal water streams obtained from the Lower Triassic and Middle Triassic ...
Wiśniewski Sławomir   +2 more
doaj   +1 more source

Detrital zircons from Lower Triassic sandstones, Belsky depression, Pre-Uralian foredeep: LA-ICP-MS U-Pb isotopic ages and distribution of rare and trace elements

open access: yesЛитосфера, 2016
Lower Triassic sandstones in the southern part of Belsky depression (Pre-Uralian foredeep) contain detrital zircons with concordant U-Pb isotopic ages ranging from Neoarchean to the boundary of the Carboniferous and Permian.
A. V. Maslov   +4 more
doaj  

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