Results 151 to 160 of about 780,612 (368)
, 2006 . Arnaud, N. O., Vidal, Ph., Tapponnier, P., Matte, Ph. & Deng, W. M. (1992). The high K2O volcanism of northwestern Tibet: geochemistry and tectonic implications. Earth and Planetary Science Letters 111, 351–367.
Zhengfu Guo +3 more
semanticscholar +1 more source
Journal of Metamorphic Geology, EarlyView.ABSTRACT A garnet population from the lower Kalak Nappe Complex in Finnmark (Arctic Norway) was characterized using high‐resolution X‐ray micro‐computed tomography, electron probe micro‐analysis and laser ablation inductively coupled plasma mass spectrometry mapping to assess the extent of compositional equilibration and the controlling crystallization
M. T. A. G. Yogi +3 more
wiley +1 more source
Antarctic Record, 2003 Scientific activities and results of the JARE (Japanese Antarctic Research Expedition) geology group for the Napier and Rayner Complexes in Enderby Land, East Antarctica, are reviewed in relation to 1) publications of two detailed geologic maps as a ...
Hideo Ishizuka
doaj +1 more source
The late Mesozoic-Cenozoic tectonic evolution of the South China Sea: A petrologic perspective [PDF]
, 2014 This paper presents a review of available petrological, geochonological and geochemical data for late Mesozoic to Recent igneous rocks in the South China Sea (SCS) and adjacent regions and a discussion of their petrogeneses and tectonic implications. The
Castillo, PR, Shi, X, Yan, Q
core +2 more sources
Evidence for Phosphate Metasomatism in an Olivine‐Rich Achondrites
Meteoritics &Planetary Science, EarlyView.Abstract Brachinites, brachinite‐like achondrites (BLA), and other similar primitive achondrites offer important constraints on differentiation processes of the earliest formed planetesimals, as they quenched amidst early differentiation processes on their parent body. Geochemical data for all major mineral phases in two previously poorly characterized
Robert W. Nicklas +5 more
wiley +1 more source
Komatiites: From Earth's Geological Settings to Planetary and Astrobiological Contexts [PDF]
arXiv, 2005 Komatiites are fascinating volcanic rocks. They are among the most ancient lavas of the Earth following the 3.8 Ga pillow basalts at Isua and they represent some of the oldest ultramafic magmatic rocks preserved in the Earth's crust at 3.5 Ga. This fact, linked to their particular features (high magnesium content, high melting temperatures, low dynamic
arxiv
Harry Hess and sea-floor spreading [PDF]
, 1999 Harry Hess's hypothesis of sea-floor spreading brought together his long-standing interests in island arcs, oceanic topography, and the oceanic crust. The one unique feature of Hess's hypothesis was the origin of the oceanic crust as a hydration rind on ...
Allwardt, Alan O.
core
Schist Belts of the Benin‐Nigeria Shield Reveal a Neoproterozoic History
Terra Nova, EarlyView.ABSTRACT Belts of metasedimentary rocks (schist belts) in the Benin‐Nigeria Shield (BNS) are investigated for the first time using U–Pb dating and Lu‐Hf isotope analysis of detrital zircons. We report maximum depositional ages that place their deposition firmly in the Neoproterozoic and link them with strata in the Dahomey Belt, the central African ...
Axel Hofmann +6 more
wiley +1 more source
Report on workshop"Structure and evolution of Eurasia (super-) continent"
Antarctic Record, 2004 A workshop on Structure and evolution of Eurasia (super-) continent" was held on 23rd February 2004, at the National Institute of Polar Research with 29 participants.
Masaki Kanao
doaj +1 more source
Hanohano: A Deep Ocean Anti-Neutrino Detector for Unique Neutrino Physics and Geophysics Studies [PDF]
arXiv, 2008 The science potential of a 10 kiloton deep-ocean liquid scintillation detector for ~1 MeV energy scale electron anti-neutrinos has been studied. Such an instrument, designed to be portable and function in the deep ocean (3-5 km) can make unique measurements of the anti-neutrinos from radioactive decays in the Earth'.s mantle.
arxiv