Results 91 to 100 of about 51,695 (270)

Metallogeny of the marginal sea lithosphere (Northeast Russia)

Литосфера, 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

The Role of Placer Deposits in Ensuring the Reproduction of the Mineral Resource Base of Scarce Types of Strategic Mineral Raw Materials in Russia at the Present Stage

Russian Journal of Earth Sciences
Placer deposits had (and for a number of components still have) an important role in providing strategic types of mineral resource base for both Russia and the world as a whole.
Bortnikov N. S., Volkov A. V., Lalomov A. V., Bochneva A. A., Ivanova Yu. N., Lalomov D. A.   +5 more
doaj   +1 more source

GOLD-POLYMETALLIC MINERALIZATION OF THE RIDDER-SOKOLNOYE DEPOSIT IN THE RUDNY ALTAI (EASTERN KAZAKHSTAN) [PDF]

Минералогия, 2018
New geochemical data on distribution of gold mineralization in the ore lode sections of the Ridder-Sokolnoye deposit, the largest in Rudny Altai, confirm the crossing style of gold-quartz veins and gold-bearing stockwork relative to the zonal bodies of ...
G.D.Ganzhenko, M.A. Yudovskaya, I.V. Vikentyev   +2 more
doaj  

Bio‐mediated cementation of supratidal beach sediments associated with groundwater springs

Sedimentology, EarlyView.
ABSTRACT The formation of beachrock, sensu stricto, via carbonate precipitation in the intertidal zone is widespread throughout the tropics and subtropics. While cementation of supratidal beach sediments has also been noted in several locations, it has received much less attention.
Thomas William Garner, J. Andrew G. Cooper   +1 more
wiley   +1 more source

Luminescence petrography of the Apollo 12 rocks and comparative features in terrestrial rocks and meteorites Final report [PDF]

Luminescence petrography of Apollo 12 rocks and comparative features in Apollo 11 rocks, terrestrial rocks, and ...
Sippel, R. F.
core   +1 more source

Development of Holocene lacustrine microbialites on the Iberian Peninsula: Insights into environmental and depositional controls using X‐ray CT and petrography

Sedimentology, EarlyView.
ABSTRACT Microbial mats and microbialites are common in modern and ancient saline lacustrine environments and are highly responsive to biological and environmental factors. As such, they represent important sources of high‐resolution environmental data across a wide range of geological time. Nonetheless, interpretation of fossil mats is non‐trivial due
Connor Doyle, Juan Pablo Corella, Julia Behnsen, Mario Morellón, Celia Martín‐Puertas, Blas Valero Garcés, Stefan Schröder   +6 more
wiley   +1 more source

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

Russian 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., Volkov A. V., Lobanov K. V.   +2 more
doaj   +1 more source

Bentonite clays of Russia and neighboring countries

Georesursy, 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

Ductile Extrusion Triggered by Continental Collision in NE Brazil

Terra Nova, EarlyView.
ABSTRACT The Borborema Province in northeastern Brazil hosts one of the world's largest strike‐slip shear zone networks, active during the late Neoproterozoic assembly of West Gondwana. Whether these shear zones initiated during active continental collision or as a post‐orogenic response to far‐field stresses remains debated.
L. R. Tesser, C. E. Ganade, C. R. Cioffi, J. B. Forshaw, M. Hueck, E. Celis, M. A. S. Basei   +6 more
wiley   +1 more source

TEV—A Program for the Determination of the Thermal Expansion Tensor from Diffraction Data

Crystals, 2015
TEV (Thermal Expansion Visualizing) is a user-friendly program for the calculation of the thermal expansion tensor αij from diffraction data. Unit cell parameters determined from temperature dependent data collections can be provided as input.
Thomas Langreiter, Volker Kahlenberg
doaj   +1 more source