Results 91 to 100 of about 2,787 (213)

The Precambrian metallogeny of Kwazulu-Natal [PDF]

open access: yes, 1998
The Precambrian rocks of KwaZulu-Natal comprise the Archaean granite-greenstone remnants of . the Kaapvaal craton and Late Archaean volcanics and sediments of the supracratonic Pongola Supergroup. These Archaean rocks have been intruded by numerous mafic/
Hira, Hethendra Gangaram
core   +1 more source

Plates for "The petrology, petrogenesis, and metallogeny of the South Kawishiwi intrusion in the Nokomis deposit area, Duluth Complex, northeastern Minnesota"

open access: yes, 2008
The attached pdf files are Plates I ("Geologic Bedrock Map of the South Kawishiwi Intrusion in the Maturi and Maturi Extension Areas, Lake County, Northeastern Minnesota") and II ("Fence Diagram through the northern South Kawishiwi intrusion in the ...
White, Christopher Reed
core  

Evolution of metallogeny of granitic pegmatites associated with orogens throughout geological time

open access: yes, 2016
Since c. 3.1 Ga, pegmatite mineral deposits in orogenic areas have been formed throughout geological time in pulses, alternating with total absence of generating activity. The higher activity peaks of 2.65–2.60, 1.90–1.85, 1.00–0.95,
A. V. Tkachev (2846972)
core   +1 more source

Genesis of saltpeter deposits in karst caves in Southwest China

open access: yesJournal of Asian Earth Sciences: X
Saltpeter deposits preserved in karst caves are large and widely distributed in southwest China. These deposits historically served as the principal source of saltpeter for traditional gunpowder production in pre-industrial China.
Pengcheng Sun   +5 more
doaj   +1 more source

Granitic magmatism and metallogeny of southwestern North America

open access: yes, 1996
:In southwestern North America, late Palaeozoic through Cenozoic granitoids and their related mineral deposits show consistent patterns that can be interpreted in terms of combined provincial, exposure and process controls.
Mark D. Barton
core   +1 more source

Deep-Towed Array Geometry Inversion Based on an Improved Particle Swarm Optimization Algorithm

open access: yesJournal of Marine Science and Engineering
When marine deep-towed multichannel seismic data are processed, the description of the receiving array geometry significantly impacts the quality of the imaging profile. Therefore, achieving a highly precise description of the receiving array geometry is
Xiaohu Luo   +5 more
doaj   +1 more source

Activities of the Working Group of Geology and Metallogeny of Seafloor Hydrothermal Deposit (I.G.C.R project 318)

open access: yes, 1996
The Spanish working group on “Geology and Metallogeny of Seafloor Hydrothermal Deposits"(IGCP project 318) has concentrated research in four areas: 1) Las Herrerías deposit, Vera-Garrucha basin (SE iberia): an interesting example of Upper Tortonian ...
Martínez Frías, J.
core  

Vulcanism and Metallogeny [PDF]

open access: yesGeological Magazine, 1926
openaire   +1 more source

Geochemical constraints on ridge-plume interaction in the West Philippine Basin

open access: yesCommunications Earth & Environment
The West Philippine Basin is not only a back-arc basin resulting from the subduction of the paleo-plates, but it has also undergone modification due to intraplate processes.
Quanshu Yan, Long Yuan, Xuefa Shi
doaj   +1 more source

The Formation Conditions of the Volga Basin Oil Shales in Relation to Their Metallogeny on Rhenium and Other Valuable Elements

open access: yes
The Volga oil shales are located on the Russian platform and represent a potential non-traditional and promising source of rhenium and other valuable metals.
V. S. Ilyasov   +2 more
core   +1 more source

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