Results 41 to 50 of about 549,859 (138)

Lithostratigraphy, geology and geochemistry of the volcanic rocks of the Vaigat Formation on Disko and Nuussauaq, Paleocene of West Greenland, Chemical analyses, supplementary data.

Geological Survey of Denmark and Greenland Bulletin, 2017
Supplementary data to GEUS Bulletin 39 Lithostratigraphy, geology and geochemistry of the volcanic rocks of the Vaigat Formation on Disko and Nuussuaq, Paleocene of West Greenland.
Asger Ken Pedersen, Lotte Melchior Larsen, Gunver Krarup Pedersen   +2 more
doaj  

Evaluating Crustal Contamination Effects On The Lithophile Trace Element Budget Of Shergottites, NWA 856 As A Test Case [PDF]

, 2017
The issue of whether crustal contamination has affected the lithophile trace element budget of shergottites has been a point of contention for decades.
Ferdous, J., Peslier, A. H., Brandon, A. D.   +2 more
core  

Palaeoproterozoic rift-related alkaline magmatism in Bari area, Son valley, Central India

Geosystems and Geoenvironment
Earlier studies on Palaeoproterozoic (∼1800 Ma) alkaline (shoshonitic) rocks comprised of limited petrochemical data on the Bari syenite and other contiguous felsic rocks emplaced in anorogenic rift setting along the Son-Narmada North Fault (SNNF). Using
G. Mageswarii, Meenal Mishra, Vaibhava Srivastava, Hari B. Srivastava, M. Satyanarayanan, J.P. Shrivastava   +5 more
doaj   +1 more source

INTERACTION OF MANTLE-DERIVED MELTS WITH CRUST ON ITS UPWELLING TO THE SURFACE: REASON AND CONSEQUENCE

Геодинамика и тектонофизика, 2015
The work considers the mechanism of upwelling of the basaltic melt to the surface and the reason of its stoppage in the crust. The process of stoppage, probably, is controlled by ratio between density of the basaltic melt and density of the crust.
Alexei V. Ivanov
doaj   +1 more source

Crustal accretion at the Reykjanes Ridge, 61°–62°N [PDF]

We report results of a seismic, gravity, and magnetic survey of the Reykjanes Ridge spreading center at 61°–62°N, about 600 km from the center of the Iceland mantle plume.
Smallwood, John R., White, Robert S.
core   +1 more source

Geochemical characteristics of the Eocene Karataş volcanics (Northeast Sivas, Turkey) in the İzmir-Ankara-Erzincan Suture Zone

Bulletin of the Mineral Research and Exploration, 2020
Karataş volcanics, is the product of Eocene volcanics crop out in the form of two belts along the northern and southern boundaries of the İzmir-Ankara-Erzincan Suture Zone.
Oktay Canbaz, Ahmet Gökce, Taner Eki̇ci̇, Hüseyin Yılmaz   +3 more
doaj   +1 more source

Sulfide Copper‐Iron Isotopic Fractionation During Formation of the Kalatongke Magmatic Cu‐Ni Sulfide Deposit in the Central Asian Orogenic Belt

Geochemistry, Geophysics, Geosystems
Copper and iron isotopic signatures in sulfide and silicate minerals are important genetic indicators in magmatic sulfide deposits. Kalatongke is a large‐scale magmatic Cu‐Ni sulfide deposit in the Central Asian Orogenic Belt, and one that experienced ...
Dongmei Tang, Kezhang Qin, Noreen J. Evans, Haoru Wang   +3 more
doaj   +1 more source

Avaliação da contaminação por elementos metálicos dos sedimentos do Estuário Santos - São Vicente Assessment of metallic element contamination in sediments from the Santos - São Vicente Estuarine System

Química Nova, 2008
Three approaches were applied to evaluate metal contamination in 41 sediment samples from the Santos - São Vicente Estuarine System: normalization to Al, statistical analysis and sediment quality guidelines (SQGs).
Marcos Antonio Hortellani, Jorge E. S. Sarkis, Denis M. S. Abessa, Eduinetty C. P. M. Sousa   +3 more
doaj   +1 more source

Fully nonlinear inversion of fundamental mode surface waves for a global crustal model [PDF]

, 2007
We use neural networks to find 1-dimensional marginal probability density functions (pdfs) of global crustal parameters. The information content of the full posterior and prior pdfs can quantify the extent to which a parameter is constrained by the data.
Meier, U., Curtis, A.; id_orcid, Trampert, J.   +2 more
core   +1 more source

Petrogenetic and geochemical characteristics of some auriferous granitoids in the Kumasi Basin, Ghana: Implications for geodynamic settings and controls of orogenic gold mineralization in the Edikan Gold Mine

Deep Underground Science and Engineering
The Edikan Mine, which consists of Fobinso and Esuajah gold deposits, lies within the Asankrangwa Gold Belt of the Birimian Supergroup in the Kumasi Basin.
Emmanuel D. Sunkari, Obed Oppong, Theophilus K. Agbenyezi   +2 more
doaj   +1 more source