نتایج جستجو برای: upper paleozoic

تعداد نتایج: 206694  

2017
KAREN S. TAYLOR

The internal layering and provenance of feldspar in 3 tills and in one outwash deposit at Gahanna, Ohio, were studied by determining pebble lithologies and Rb-Sr dates of feldspar. Variations in lithology of pebbles and in the Rb-Sr ratios of feldspar in the 125—250 micrometer fractions reveal discontinuities which divide the upper 2 tills into 2 subunits each. Each of the lower subunits appear...

Journal: :Geodinamika i Tektonofizika 2022

The article presents the results of integrated geological and geophysical research works dealt with detailed magnetotelluric (MT) sounding study morphology spatial position sedimentary cover basement structures along key transect Middle Tien Shan crossing Naryn Atbashi depressions. data on distribution deep electrical conductivity crust upper mantle were compared seismic profiling data. compila...

2015
Carla J. Harper Thomas N. Taylor Michael Krings Edith L. Taylor

Fungi today occur on virtually every plant part, living and dead, and represent a significant proportion of fungal diversity. Arborescent seed ferns characterized by large, tongue-shaped leaves with reticulate venation (Glossopteris) represent the dominant floral element in the Permian of Gondwana. However, documented evidence of fungi associated with the leaves of these plants is exceedingly r...

Journal: :Energies 2023

The exploration of hydrocarbon resources plays a critical role in fulfilling the world’s increasing demand for energy. In this regard, distribution and source rock characteristics coal measure stratum whole basin are important must be studied. However, systematic research has not been conducted yet. study, organic geochemical data, drilling fieldwork were used to examine Upper Paleozoic stratum...

Journal: :Adsorption Science & Technology 2022

With the popularization of natural gas and requirement environmental protection, development utilization are particularly important. The status in China’s oil exploration is constantly improving, country pays more attention to exploitation gas. tight sandstone Upper Paleozoic Ordos Basin has characteristics low porosity, permeability, large area concealed reservoirs. increasing demand for China...

Journal: :Frontiers in Earth Science 2022

We integrated new and existing geological, geochronological, thermochronological, two-dimensional (2D) seismic data from the Salar de Punta Negra Basin to define Late Paleozoic–Cenozoic tectonic evolution of inner Andean forearc northern Chile more precisely. Our results indicate that this region experienced early Paleozoic–Mesozoic crustal extension, creating several basement half-graben struc...

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