Results 111 to 120 of about 39,712 (281)

Sedimentary provenance of siliciclastic rocks from the Lalla Mouchaa Calcschists Formation (Coastal Block, Western Rehamna): Evidence of denudation of ca. 2 Ga basement in the Moroccan Meseta. [PDF]

open access: yes, 2018
Paleoproterozoic basement rocks (ca. 2Ga) are scarce along the European and North African Paleozoic mountain chains (Fig.1a). In Morocco, ca. 2.2-2Ga granitic rocks (Gasquet et al., 2008; Kouyaté et al., 2013) have been exclusively reported in the ...
El Attari, A.   +8 more
core  

On the Upper Old Red Sandstone and Upper Devonian Rocks [PDF]

open access: yesQuarterly Journal of the Geological Society of London
I was engaged for three summer months in 1854, and again for a short tune last year, in examining carefully the lower beds of the Mountain Limestone and the uppermost beds of the Old Red Sandstone, with a view to establish, if possible, the correlation between the Upper Old Red and the corresponding portion of the Devonian series —a relation which has ...
openaire   +1 more source

PROSPECTS OF OIL AND GAS POTENTIAL OF THE UPPER DEVONIAN-TOURNAISIAN CARBONATE COMPLEX OF THE BYM-KUNGUR MONOCLINE

open access: gold, 2023
Пермский государственный национальный исследовательский университет   +1 more
openalex   +2 more sources

THE CAUSE OF BIOMASS EXTINCTION AT THE FRASNIAN-FAMENNIAN BOUNDARY, THE KERMAN PROVINCE SOUTHEASTERN, CENTRAL IRAN [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2002
About 35 samples were collected from lower and upper parts of the proposed Frasnianamennian boundary in three sections of Upper Devonian marine sediments of the Kerman province.
doaj  

Devonian strata of the Southern Timan: paleomagnetic data [PDF]

open access: yesНефтегазовая геология: Теория и практика
New paleomagnetic determinations are presented based on a reconnaissance collection of rocks of the Frasnian and Famennian stages of the Upper Devonian, selected on the river Ukhta and river Izhma.
Iosifidi A.G., Sal'naya N.V.
doaj  

Evaluation of existing knowledge of the tectonic history and lithospheric structure of South America [PDF]

open access: yes
While data is available on the lithospheric and crustal structure of the Andes region of South America, there is limited knowledge of these aspects of the eastern portion of the continent.
Keller, G. R., Lidiak, E. G.
core   +1 more source

The north-subducting Rheic Ocean during the Devonian: consequences for the Rhenohercynian ore sites [PDF]

open access: yes, 2017
Base metal mining in the Rhenohercynian Zone has a long history. Middle-Upper Devonian to Lower Carboniferous sediment-hosted massive sulfide deposits (SHMS), volcanic-hosted massive sulfide deposits (VHMS) and Lahn-Dill-type iron, and base metal ores
Nesbor, Heinz-Dieter   +2 more
core  

On mapping of the best natural reservoirs in the reef deposits of the Upper Devonian of Timan-Pechora oil and gas basin [PDF]

open access: bronze, 2019
Е.М. Данилова   +2 more
openalex   +1 more source

Ostracods from freshwater and brackish environments of the Carboniferous of the Midland Valley of Scotland : the early colonization of terrestrial water bodies [PDF]

open access: yes, 2012
The Mississippian Strathclyde Group of the Midland Valley of Scotland yields some of the earliest non-marine ostracods. The succession records shallow marine, deltaic, estuarine, lagoonal, lacustrine, fluvial and swamp environments representing a series ...
Bennett, C.E.   +6 more
core  

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