نتایج جستجو برای: lower cenomanian

تعداد نتایج: 692289  

Journal: :Bulletin of the Geological Society of Denmark 2005

1997
G. D. PRICE B. W. SELLWOOD R. M. CORFIELD L. CLARKE J. E. CARTLIDGE

Stable isotopic measurements have been made on both planktonic foraminifera and coccolithic matrix of Middle Cretaceous (Late Albian–Cenomanian) age from two Pacific low latitude sites. The degree of alteration of the foraminifera has been assessed through the application of chemical analyses, cathodoluminescence and Scanning Electron Microscopy (SEM). The rotaliporid foraminifera display an in...

Journal: :Minerals 2021

The Lower Cretaceous Dalazi Formation in the Yanji Basin, eastern Jilin Province is of particular interest because it contains key fresh water fossil taxa, oil and gas resources, a potential terrestrial Albian–Cenomanian boundary, regional unconformities. However, lack precise chronology for non-marine strata has precluded better understanding stratigraphic correlation processes. Here, we repor...

Journal: :Zootaxa 2014
Randall L Nydam

Dakotasaurus gilletorum Nydam 2013 was erected for two partial mandibles of a paramacellodid-cordylid grade scincomorphan lizard from the early Late Cretaceous (Cenomanian) of southern Utah (Nydam 2013). However, the genus name Dakotasaurus is a junior homonym of the ichnofossil Dakotasaurus Branson and Mehl 1932. Under Article 23.1 of the International Code of Zoological Nomenclature (ICZN 199...

2006

Many aspects of Late Cretaceous eustasy, including timing, amplitudes, and forcing mechanisms, remain poorly understood. Recent studies suggest a possibility of Milankovitch forcing of the Cretaceous "greenhouse" eustasy (e.g. Plint, 1991; Fischer Hinnov, 2000; Gale et al., 2002), but stratigraphic data, which would exceed, in their temporal resolution, the constraints given by biostratigraphic...

Journal: :Journal of Sedimentary Research 2021

ABSTRACT Submarine slopes prograde via accretion of sediment to clinoform foresets and degrade in response channel or canyon incision mass-wasting processes. The timescales over which progradation degradation occur, the large-scale stratigraphic record these processes, remain unclear due poor age constraints subsurface-based studies areally limited exposures exhumed systems. We here integrate 3...

Journal: :Journal of Petroleum Exploration and Production Technology 2022

Abstract The geophysical interpretations for a collection of high-quality 2D seismic data plus well logging six drilled wells exposed the structural controls and hydrocarbon potentiality Beni Suef Basin, north Western Desert, Egypt. created map on top Early Cenomanian Bahariya Formation (the significant oil reserve in Desert), exhibits series NW–SE normal faults as master ENE strike-slip major ...

2014
Vincent Perrichot Michael S. Engel

A new species of the extinct genus Microphorites Hennig (Dolichopodidae: Microphorinae) is described from a single male preserved in Late Cretaceous (Cenomanian to Santonian) Vendean amber (NW France). Microphorites magaliae n. sp., is mostly characterized by large compound eyes, flagellomere I with base bulbous and abruptly tapering to slender apex, thorax strongly hump-backed, with numerous a...

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