Results 1 to 10 of about 41,082 (236)

The Precambrian/Lower Cambrian pluton from Vila Nova [PDF]

open access: yes, 2010
The Vila Nova pluton is a small, Pre-Variscan granitic body that intruded rocks of the Central Iberian Zone near the contact with the Ossa Morena Zone and is affected by several shear zones and faults.
Antunes, I.M.H.R.   +2 more
core   +5 more sources

Geological characteristics and distribution of global primary hydrocarbon accumulations of Precambrian-Lower Cambrian

open access: yesShiyou shiyan dizhi, 2021
In recent years, primary hydrocarbon accumulations of Precambrian-Lower Cambrian have caused an increasing attention in the oil and gas explorations worldwide. The Eastern Siberian Basin in Russia, the Oman Basin in the Middle East, and the Sichuan Basin
Gang LI   +5 more
doaj   +2 more sources

The leucogranulite formation and zelenolevadivska siute of the Buh area granulite complex (western part of the Ukrainian shield). Article 2. Concomitant and superimposed phenomena, isotopic dating and age

open access: yesМінеральні ресурси України, 2022
The article continues the discussion of the origin of the leucogranulite formation of the Buh Area granulite complex and the possibility of distinguishing it as an independent stratigraphic unit – zelenolevadivska suite – in the scheme of the ...
V. P. Kyrylyuk, A. M. Lyssak
doaj   +1 more source

? Precambrian-low Lower Cambrian ichnofossils from the Lolab Valley, Kashmir Himalaya, India

open access: yesJournal of the Palaeontological Society of India, 1983
B . K. Raina   +3 more
doaj   +2 more sources

Content and technological scheme of geotectonic research in geological mapping of the basement of the Ukrainian shield

open access: yesМінеральні ресурси України, 2022
One of the important results of the state geological mapping is the understanding of tectonics and the history of the geological development of the surveyed areas.
V. P. Kyrylyuk, O. M. Shevchenko
doaj   +1 more source

About the so-called «Bug series» of the Middle Bug region (Ukrainian Shield). Article 3. Problems of origin and age.

open access: yesГеофизический журнал, 2023
The name «Bug Series» was introduced into the Precambrian stratigraphic scheme of the Ukrainian Shield more than half a century ago. During this period, ideas about the composition and age of the series changed several times, but at the same time, until ...
V.P. Kyrylyuk
doaj   +1 more source

The leucogranulite formation and zelenolevadivska siute of the Buh area granulite complex (western part of the Ukrainian shield). Article 1. General information, composition, structure, stratigraphic position

open access: yesМінеральні ресурси України, 2021
The article continues the discussion of the origin of the leucogranulite formation of the Buh Area granulite complex and the possibility of its isolation as an independent stratigraphic unit – zelenolevadivska suite – in the scheme of the dismemberment ...
V. P. Kyrylyuk, A. M. Lyssak
doaj   +1 more source

Structure and evolution of Precambrian basement in southwestern Tarim Basin

open access: yesShiyou shiyan dizhi, 2023
The intensifying exploration for deep-buried oil and gas reserves in the southwestern Tarim Basin accelerates the necessity to understand how the structure and evolution of the Precambrian basement affect the development and distribution of Precambrian ...
Zicheng CAO   +8 more
doaj   +1 more source

Revisiting stratigraphic complexes and regional stratigraphic scheme of the lower precambrian of the Ukrainian shield. Article 2. Correlation of complexes of ukrainian and other shields of North Eurasia

open access: yesМінеральні ресурси України, 2020
The second article discusses the 5 main types of stratogenic metamorphic complexes found in the East-European and Siberian platforms: 1) granulite-gneissic; 2) amphibolite-gneissic; 3) greenstone; 4) ferruginous-siliceous-schistose (metavolcano-chemo ...
V. P. Kyrylyuk
doaj   +1 more source

The low permeability of the Earth’s Precambrian crust

open access: yesCommunications Earth & Environment, 2023
The large volume of deep groundwater in the Precambrian crust has only recently been understood to be relatively hydrogeologically isolated from the rest of the hydrologic cycle.
Grant Ferguson   +3 more
doaj   +1 more source

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