Results 41 to 50 of about 3,855 (216)

Metamorphic evolution and zircon geochronology of early Proterozoic granulites in the Aravalli Mountains of Northwestern India

, 2005
Granulites including a charnockite suite, mafic granulites, pelitic granulites, metanorite dykes and their retrograde varieties occur as discontinuous shear zone-bounded bodies within the Archaean basement comprising a granite gneiss-amphibolite ...
Kröner, Alfred, Roy, A. B., Bhattachaya, P. K., Rathore, Sanjeev   +3 more
core   +1 more source

New constraints on the postglacial evolution of Lago Maggiore, Northern Italy

Journal of Quaternary Science, EarlyView.
ABSTRACT Lago Maggiore is situated in an overdeepened valley reach at the southern margin of the European Alps, and its thick sediment infill allows the reconstruction of the postglacial valley and lake evolution. We study here the sedimentary succession in the lower Ossola Valley, which is infilled by ~500 m of deposits. In a marginal position, a core
Lukas Gegg, Alexander Fülling, Andrew Greenwood, György Hetényi, F. Martin Hofmann, Giovanni Monegato, Jahir S. Rangel Herrera, Camille Schirra, Marco Venier, Othmar Müntener   +9 more
wiley   +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

Mafic Granulites in the Crystalline Core of the Neybaz Complex [PDF]

پترولوژی
IntroductionFormation and evolution of the continental crust is one of the fundamental subjects in Earth sciences studies, as these processes usually occurred during the Archean and Proterozoic (e.g., Condie, 1980; Taylor and McLennan, 1981).
Rasoul Valiei, Seyed Mohsen Tabatabaei Manesh, Alireza Nadimi   +2 more
doaj   +1 more source

Microplate Tectonics Through Earth History and Across Solid Multispheres

Geological Society of China Bulletin, EarlyView.
The evolution of tectonic microplates throughout Earth´s history as well as the transitions between microplates across different solid spheres offers a novel approach to expanding the traditional plate tectonics theory. ABSTRACT The evolution of tectonic microplates throughout Earth's history as well as the transitions between microplates across ...
Sanzhong Li, Yanhui Suo, Jie Zhou, Guozheng Sun, Jianping Zhou, Xianzhi Cao, Bo Liu, Lingli Guo, Zhaoxia Jiang, Qianqian Li, Shujuan Zhao, Long Chen, Xi Wang, Jun Hu, Xiaohui Li, Xiyao Li, Wenyong Duan, Lin Liu, Jie Liu, Guangzeng Wang, Pengcheng Wang, Qingbin Guan, Dingshan Deng, Xu Han, Liangliang Wang, Zihao Hu, Qiuling Liu, Heda Wang, Zihan Tian, Hans‐Peter Schertl   +29 more
wiley   +1 more source

Post-Hercynian ultrahigh-temperature tectono-metamorphic evolution of the Middle Atlas lower crust (central Morocco) revealed by metapelitic granulite xenoliths [PDF]

Solid Earth
The study of metapelitic sillimanite- and garnet-bearing granulite xenoliths brought to the surface by the basanite of the 650 ka Tafraoute maar shed new light on the lower crust of the Tabular Middle Atlas (Morocco).
A. El Maz, A. Vauchez, J.-M. Dautria
doaj   +1 more source

Modelling Patterns of Past Inundation Processes Combining Geoarchaeology and Morphometric Hydrological Analysis in the Shashe‐Limpopo Basin, South Africa

Archaeometry, EarlyView.
ABSTRACT Riverine and valley systems across the globe have been central to the development of past urban centres. By AD 900, the Shashe and Limpopo Rivers seem to have facilitated the interaction and integration of early farming communities in southern Africa. This paper focuses on the application of geoarchaeological perspectives made available by the
B. S. Nxumalo
wiley   +1 more source

Eclogitization kinetics of continental granulites : quantification and implications

, 2020
International audienceWhen implicated in convergence zones, granulites of the lower continental crust are expected to eclogitize at depth.When exposed in the field such units show a bimodal rheological behavior between fracturing of the protolith rock ...
Baïsset, Marie, Labrousse, Loic, Schubnel, Alexandre   +2 more
core   +1 more source

Deformation partitioning in the mid- to deep sheared crust of the Variscan Fautea-Favone metamorphic complex (southern Corsica, France)

Journal of Maps
The Variscan basement in Corsica (France) is exposed as scattered metamorphic complexes preserved in the late Permian batholith in the south-western sector of the island.
Francesca Amabile, Chiara Frassi, Michele Marroni, Gisella Rebay   +3 more
doaj   +1 more source

Metamorphic or Igneous Zircon? Classification Through Rare Earth Elements, Machine Learning and Logistic Regression

Journal of Metamorphic Geology, EarlyView.
ABSTRACT Zircon is a common, highly refractory accessory mineral found in sedimentary, igneous and metamorphic rocks that forms through various processes (e.g., magmatic, hydrothermal, metamorphic growth and recrystallization). Trace element compositions of detrital zircon have been widely applied to understanding tectonic processes and continental ...
Jarrod M. Burges, Chris Yakymchuk, Michael P. DiMaio, Timothy C. C. Lui, Anirudh Prabhu, Shaunna M. Morrison   +5 more
wiley   +1 more source