Results 41 to 50 of about 696,092 (361)

When do we need pan-global freeze to explain ^(18)O-depleted zircons and rocks? [PDF]

, 2011
Rocks with δ^(18)O values of less than 5‰ SMOW (Standard Mean Ocean Water) contain oxygen derived from ∼0‰ seawater or meteoric (rain or melted snow,
Bindeman, Ilya
core   +1 more source

A neoproterozoic age for the chromitite and gabbro of the Tapo Ultramafic Massif, Eastern Cordillera, Central Peru, and its tectonic implications [PDF]

, 2011
The ultramafic-mafic rocks of the Tapo Complex are exposed in the Eastern Cordillera of the Central Peruvian Andes. This complex is composed of serpentinised peridotites and metabasites with some podiform chromitite lenses and chromite disseminations and
Amaral, Baldo, Castroviejo, Castroviejo, Cawood, Chew, Colombo C.G. Tassinari, Dalmayrac, Dalziel, Eurico Pereira, Fuck, Irvine, Jorge Acosta, Jose F. Rodrigues, Le Maitre, Ludwig, Megard, Palme, Pearce, Pedrosa-Soares, Ramos, Ramos, Ramos, Ricardo Castroviejo, Sato, Steiger   +25 more
core   +3 more sources

Petrographic Evidences for the Origin of Iron in IOCG IronDeposits of Kuh-E-Faryadoon and Kouli-Kosh, Southeast Central Iran [PDF]

Journal of Sciences, Islamic Republic of Iran, 2013
Kuh-E-Faryadoon and Kouli Kosh iron deposits are hosted by regional metamorphic rocks of Sanandaj-Sirjan zone around Deh-Bid area. Plugs and domes of acid rocks protrude these metamorphic rocks.
M. Sabzehei, H. Mirzaei, M Mostafavi
doaj  

Synapsids and sensitivity: Broad survey of tetrapod trigeminal canal morphology supports an evolutionary trend of increasing facial tactile specialization in the mammal lineage

The Anatomical Record, EarlyView.
Abstract The trigeminus nerve (cranial nerve V) is a large and significant conduit of sensory information from the face to the brain, with its three branches extending over the head to innervate a wide variety of integumentary sensory receptors, primarily tactile.
Juri A. Miyamae, Julien Benoit, Irina Ruf, Zoleka Sibiya, Bhart‐Anjan S. Bhullar   +4 more
wiley   +1 more source

Hydrogen adsorption characteristics of coal rock and its geological significance

Meitan xuebao
Hydrogen, as an important clean energy source that can be used as an alternative to fossil energy, can reduce global greenhouse gas emissions. However, the large-scale hydrogen industry requires large reservoirs to store hydrogen, and the use of ...
Shuangbiao HAN, Jin WANG, Jie HUANG, Zhijun JIN, Quanyou LIU, Yongping WAN, Zhenchuan WANG, Yu LIU, Yu QIAO   +8 more
doaj   +1 more source

Comparison between 2D and 3D microstructures and implications for metamorphic constraints using a chloritoid–garnet-bearing mica schist [PDF]

European Journal of Mineralogy
Despite the fact that rock textures depend on the 3D spatial distribution of minerals, our tectono-metamorphic reconstructions are mostly based on a 2D visualisation (i.e. thin sections).
F. Caso, A. Petroccia, S. Nerone, A. Maffeis, A. Maffeis, A. Corno, M. Zucali   +6 more
doaj   +1 more source

The Composition of Zircon and Igneous and Metamorphic Petrogenesis

, 2003
Zircon is the main mineral in the majority of igneous and metamorphic rocks with Zr as an essential structural constituent. It is a host for significant fractions of the whole-rock abundance of U, Th, Hf, and the REE (Sawka 1988, Bea 1996, O’Hara et al ...
P. Hoskin, U. Schaltegger
semanticscholar   +1 more source

Dendroglyphs, Pictographs and Social Identity in the Wet Tropics Rainforest of Northeastern Australia

Archaeology in Oceania, EarlyView.
ABSTRACT This research examines rock art and dendroglyphs in the Wet Tropics of northeast Australia to investigate their relationship to linguistic social identity. The region was selected for its complex socio‐cultural landscape, marked by a diversity of languages in a distinct, relatively small area.
Alice Buhrich
wiley   +1 more source

Mineral Characteristics and Metamorphic Evolution of Pelitic Gneiss in Wulashan Area, Central Inner Mongolia

Kuangchan zonghe liyong, 2023
Wulashan Neoarchean peliticgneiss is exposed in the eclogite gneiss formation of Wulashan group in central Inner Mongolia. It is the most widely distributed plutonic metamorphic rock in Wulashan formation.
Yaxin Xu, Chaocheng Dai, Peijia Chen, Taotao Liu, Qi Wang, Xinliang Wang   +5 more
doaj   +1 more source

A Multifaceted Spatial Analysis of Tomb Distribution in Blemmyan Berenike (Eastern Desert of Egypt)

Archaeological Prospection, EarlyView.
ABSTRACT This study examines the spatial and visual organisation of tombs in the post–Roman Berenike located in Egypt's Eastern Desert. Archaeological surveys, remote sensing, geophysical methods, excavations and GIS‐based analyses are used for a comprehensive understanding of the spatial patterns and cultural significance behind the positions and ...
Mariusz Gwiazda, Anna Fijałkowska, Oskar Graszka, Tomasz Herbich, Michał Tyszkiewicz   +4 more
wiley   +1 more source