Results 91 to 100 of about 2,848 (221)

The crystalline basement of Estonia: rock complexes of the Palaeoproterozoic Orosirian and Statherian and Mesoproterozoic Calymmian periods, and regional correlations [PDF]

Estonian Journal of Earth Sciences, 2009
New data on the Fennoscandian Shield and the Baltic area suggest a need for reinterpretation of the stratigraphy of Estonian Precambrian rock complexes.
Kirs, Juho, Puura, Väino, Soesoo, Alvar, Klein, Vello, Konsa, Mare, Koppelmaa, Heino, Niin, Mati, Urtson, Kristjan   +7 more
doaj  

Geochemical dataset of high-pressure acid migmatites from the Cabo Ortegal Complex (NW Spain). [PDF]

Data Brief, 2022
Beranoaguirre A, Garcia de Madinabeitia S, Sanchez-Lorda ME, Puelles P, Abalos B, Gil-Ibarguchi JI.   +5 more
europepmc   +1 more source

Measurement of thermal properties of select intact and weathered granulites and their relationship to rock properties

, 2012
Understanding the thermal properties of granulites, a group of high-grade metamorphic rocks representing composition of lower crust of the Earth, is necessary to arrive at effective crustal heat flow modeling.
RAMAKRISHNAN, D, SINGH, KD, KUSUMA, KN, NITHYA, M, BHARTI, R   +4 more
core   +1 more source

Mineralogy and geochemistry of xenoliths in the Eocene volcanic rocks from southwest of Jandaq

Journal of Economic Geology, 2013
The Eocene volcanic rocks from the southwest of the Jandaq (Kuh-e-Godar-e-Siah, Central-East Iran micro-continent) are andesitic basalt and andesite in composition. These rocks contain xenoliths with granulitic mineralogy.
Samineh Rajabi, Ghodrat Torabi
doaj  

Accelerated non-linear destruction of the earth's crust

Discrete Dynamics in Nature and Society, 2001
The upper part of the Earth—the lithospheric layer, ∼100 km thick, is rigid. Segments of this spherical shell–lithospheric plates are drifting over a ductile asthenosphere.
E. V. Artyushkov
doaj   +1 more source

A comparative review of the mineralogical and chemical composition of African major bauxite deposits. [PDF]

Heliyon, 2023
Zainudeen NM, Mohammed L, Nyamful A, Adotey D, Osae SK.   +4 more
europepmc   +1 more source

High-pressure granulites (Retrograded Eclogites) from the Hengshan Complex, North China Craton: Petrology and tectonic implications

, 2001
Both high- and medium-pressure granulites have been found as enclaves and boudins in tonalitic-trondhjemitic-granodioritic gneisses in the Hengshan Complex. Petrological evidence from these rocks indicates four distinct metamorphic assemblages. The early
Zhao, G C, Zhao, G, Cawood, PA, Lu, L Z, Cawood, Peter Anthony, Wilde, SA, Lu, L, Wilde, S A   +7 more
core  

Relict granulites in the Ross orogen of northern Victoria Land (Antarctica): II - geochemistry and paleo-tectonic implications

, 1995
Relict granulite facies rocks of the region between Priestley and Aviator Glaciers (Wilson Terrane, Ross Orogen) comprise an older supracrustal sequence which has been intruded by meta-igneous mafic and intermediate granulites and by later synmetamorphic
TALARICO, F. M., Laura Borsi, BORSI, L., LOMBARDO, B., Franco Talarico, Bruno Lombardo   +5 more
core   +1 more source

Editorial for the Special Issue "Potentially Toxic Elements Pollution in Urban and Suburban Environments". [PDF]

Toxics, 2022
Guagliardi I.
europepmc   +1 more source

An Analysis of an Appalachian Metamorphic Suite

, 2011
The Blue Ridge is one of over a dozen provinces located in the much larger Appalachian Mountain Range which spans across the eastern United States. The Appalachian Mountains began to form close to 500 million years ago and rocks within the Blue Ridge ...
Williams, Chadwick A.
core