Results 111 to 120 of about 160,877 (359)
MINERALOGICAL ANALYSIS OF THE SOILS OF THE MARITIME PROVINCES [PDF]
, 1958 J. E. Brydon
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The Depositional Record, EarlyView.Early Pleistocene mixed arenites and their associated conglomerates and sandstones were studied in detail in Calabria, southern Italy. This study suggests that the studied palaeo‐strait was not necessarily a wider and similarly oriented expression of the modern Strait of Messina.
Svea Franke +3 more
wiley +1 more source
Mineralogy of alluvial sediments of Avzyan gold region (the Southern Urals)
Литосфера, 2018 The Avzyan gold region is located within the Bashkirian anticlinorium and includes lode gold deposits and placers. The Gorny Priisk, Bogryashka and Ulyuk-Bar gold deposits are hosted in the Riphean metamorphosed carbonaceous sequence.
Ekaterina E. Palenova +4 more
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Sediment mineralogy and geochemistry [PDF]
Abstract Insight in the mineralogical and the geochemical composition of Dutch geological sediments is needed for environmental management of the subsurface. A comprehensive overview of these compositions is given in this chapter. The first part of this chapter deals with the mineralogy of the Paleozoic and Mesozoic sedimentary rocks where properties ...
Griffioen, J. +4 more
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The Depositional Record, EarlyView.Shallow‐marine mudstone of the Cretaceous Kaskapau Formation in the British Columbia foredeep preserves a 185 m thick record of OAE2. The organic carbon‐isotope and osmium‐isotope excursions can be correlated in detail with other Cenomanian–Turonian boundary sections around the world.
A. Guy Plint +12 more
wiley +1 more source
EVOLUTION OF CHEMICAL COMPOSITION AND CRYSTAL MORPHOLOGY OF AEGIRIN DURING FORMATION OF THE VISHNEVOGORSK ALKALINE CARBONATITE COMPLEX (SOUTH URALS) [PDF]
Минералогия, 2018 The chemical composition and crystal morphology of aegirine changed during formation of the Vishnevogorsk alkaline carbonatite complex. Fenitization of host metamorphic rocks, early vein syenites and pegmatites resulted in crystallization of pyroxenes ...
E.P. Makagonov +2 more
doaj
Nature, 1929 DURING the last twenty years great progress has been made in the study of coal. Instead of treating it only as a material which on combustion gave certain products, investigators have been studying the material itself, its constituents, their mode of occurrence and association, and their probable method of origin.
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The Depositional Record, EarlyView.This study integrates sedimentological and ichnological data to reveal the depositional processes and environmental conditions of deep‐water muddy gravity flows in the Mobarak Formation. It highlights distinct ichnocoenoses and bioturbation patterns, offering insights into basin‐floor versus slope mudstones and their implications for hydrocarbon ...
Aram Bayet‐Goll +2 more
wiley +1 more source