Results 21 to 30 of about 641,055 (339)

Provenance of zircon of the lowermost sedimentary cover, Estonia, East-European Craton [PDF]

open access: yesBulletin of the Geological Society of Finland, 1999
Bulk and accessory mineral composition of fresh and weathered crystalline rocks, and sedimentary deposits overlying the crystalline-sedimentary unconformity have been examined in core samples from 28 drill holes in Estonia.
M. Konsa, V. Puura
doaj   +1 more source

Reservoir Characteristics and Controlling Factors of Sedimentary Pyroclastic Rocks in Deep-Buried Basins: A Case Study of Yingtai Fault Depression, Southern Songliao Basin

open access: yesEnergies, 2022
In this article, based on core description, thin section, scanning electron microscope (SEM), well logging and reservoir physical properties, the reservoir controlling factors of sedimentary pyroclastic rocks in deep-buried basins are assessed via the ...
Ranlei Zhao   +5 more
doaj   +1 more source

Terahertz Dating of Sedimentary Rocks

open access: yesFrontiers in Physics, 2022
The depositional products of sedimentary rocks provide vital references for investigating the paleoenvironment, paleogeography, and tectonic evolution history.
Zhaohui Meng   +13 more
doaj   +1 more source

Water-soluble organic acids in sedimentary rocks: Compositions and influencing factors

open access: yesJournal of Natural Gas Geoscience, 2021
Water-soluble organic acids (WSOAs) are closely related to the formation of secondary pores, however, it's little-known for the distributions of WSOAs in sedimentary rocks at deep-ultradeep zone and high-over mature stage.
Pengpeng Li   +7 more
doaj   +1 more source

PETROLOGICAL CHARACTERISTICS OF CLASTIC SEDIMENTARY ROCKS FROM THE ST. BARBARA ORE MINE IN RUDE NEAR SAMOBOR

open access: yesRudarsko-geološko-naftni Zbornik, 2021
In the scope of this research, the petrographic and geochemical analyses of clastic sedimentary rocks from the St. Barbara, copper and iron ore mine in Rude near Samobor, have been made, aiming to classify and determine the provenance and environment of ...
Šime Bilić, Vesnica Garašić
doaj   +1 more source

L. V. Pustovalov and the establishment of sedimentary research in Russia

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2023
This article is dedicated to the role of L.V. Pustovalov in creating the theoretical foundations of sedimentary research in Russia, including determination and substantiation of the most important regularities governing sedimentary processes and their ...
V. G. Kuznetsov
doaj   +1 more source

Provenance history of a Late Triassic-Jurassic Gondwana margin forearc basin, Murihiku Terrane, North Island, New Zealand: petrographic and geochemical constraints [PDF]

open access: yes, 2004
The Murihiku Terrane in the North Island was a forearc basin adjacent to a volcanic arc along the eastern margin of Gondwana during the Mesozoic. The rocks that infill the basin are mainly volcaniclastic sandstones and mudstones, often turbiditic, with ...
Briggs, Roger M.   +2 more
core   +2 more sources

Stratigraphical section through Lower Cambrian at Söderfjärden, Vaasa, western Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 1982
The Lower Cambrian sedimentary rocks form a doughnut-shaped deposit on the bottom of the Söderfjärden depression. The sedimentary pile was first established and has now been penetrated by drilling.
J.J. Lehtovaara
doaj   +1 more source

Chemical alteration of fine-grained sedimentary rocks at Gale crater

open access: yesIcarus (New York, N.Y. 1962), 2019
From Sol 750 to 1550, the Curiosity rover documented>100 m thick stack of fine-grained sedimentary rocks making up part of the Murray formation, at the base of Mt Sharp, Gale crater.
N. Mangold   +20 more
semanticscholar   +1 more source

Sedimentary Rocks [PDF]

open access: yes, 2011
The main purpose of R/V METEOR cruise M81/2AB was to obtain new insights into the controversially discussed origin and geodynamic evolution of the Caribbean Large Igneous Province (CLIP) and the Caribbean Plate using an interdisciplinary approach combining structural geology geodynamics magnetics volcanology sedimentology petrology magmatic ...
Baumgartner Peter   +1 more
openaire   +2 more sources

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