Results 91 to 100 of about 14,109 (220)

(Table 1) Petrography, Curie temperature and magnetic concentration of core samples of ODP Hole 109-670A [PDF]

open access: yes, 1990
(Table 1) Petrography, Curie temperature and magnetic concentration of core samples of ODP Hole 109 ...
Kristian Krammer (6979004)   +1 more
core   +1 more source

Peculiarities of formation, isomorphism and geochemistry of trace elements of sphalerite and wurtzite unusual varieties from the Goniatite occurrence (Pai-Khoi Ridge, Nenets Autonomous District)

open access: yesЗаписки Горного института
A unique Mn-, Cd-bearing sphalerite from quartz-calcite veins in the coal-bearing series (Visean C1v) marine sediments in a 50 km segment of the middle course of the Silova-Yakha River in the Arctic zone of the European part of Russia (Pai-Khoi Ridge ...
Aleksandr B. Makeyev   +4 more
doaj  

The Polymetallic Deposits of the Western European Plate and Structure of the Earth's Crust According to GOCE Gravity Data

open access: yesRussian Journal of Earth Sciences
For the first time, the results of modern studies of the earth's crust based on gravity data from the GOCE satellite Project are used for a comparative regional metallogenic analysis of the geodynamic settings of the formation of polymetallic deposits in
Galyamov A. L.   +2 more
doaj   +1 more source

Recognition of fossil keratose sponges in carbonates using petrographic and machine‐learning classification

open access: yesSedimentology, EarlyView.
ABSTRACT Filamentous, anastomosing spar‐filled networks in Phanerozoic carbonates have been interpreted as the mineralised remains of keratose (non‐spiculate) sponges, yet their recognition remains contested because fabrics of broadly similar appearance may arise from microbial, diagenetic or physical processes. This study combines direct fossil–modern
Jeong‐Hyun Lee   +2 more
wiley   +1 more source

(Table 1) Silicic units and petrography in ODP Hole 135-841B [PDF]

open access: yes, 1994
(Table 1) Silicic units and petrography in ODP Hole 135 ...
Schöps, Dietmar   +3 more
core   +1 more source

Methodological Aspects of Predictive Mineragenic Studies Using Earth Remote Sensing Data

open access: yesRussian Journal of Earth Sciences
The article considers methodological aspects of allocation and substantiation of exploration areas for scarce types of ore minerals taking into account the concept of of mineral systems and using Earth remote sensing data with the application of ...
Petrov Vladislav   +2 more
doaj   +1 more source

Diagenetic controls on porosity evolution and pore type organisation in microporous carbonate rocks: Evidence for mesogenetic porosity formation

open access: yesSedimentology, EarlyView.
ABSTRACT Microporous carbonate rocks typically record complex diagenetic histories driven by microbial activity and fluid interactions within multiple diagenetic environments. The relative roles of meteoric and burial diagenetic processes in pore evolution remain debated, particularly within Cretaceous carbonate systems of the Middle East, as does the ...
Hugues Bitault   +5 more
wiley   +1 more source

Metallogeny of the marginal sea lithosphere (Northeast Russia)

open access: yesЛитосфера, 2015
Metallogenic model of the margin sea lithosphere is a complex combination of rejuvenated mineralization of the Precambrian basement terrains, of different types of sulfidized zones Verkhoyansk (Pz-J) sedimentary formations and the post-magmatic ...
A. A. Sidorov, A. V. Volkov
doaj   +2 more sources

Bentonite clays of Russia and neighboring countries

open access: yesGeoresursy, 2019
Bentonite clay is an important natural material, widely used in many industries. The purpose of this article is to analyze the mineral resource base of bentonite clays in Russia.
Peter E. Belousov, Victoria V. Krupskaya
doaj   +1 more source

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