Results 71 to 80 of about 2,848 (221)

Comment on ‘Near‐Synchronous Cambrian Evolution of the Transbrasiliano‐Kandi‐4°50′ Shear Zone in South America and Africa’

Terra Nova, EarlyView.
Sérgio P. Neves, Alain Vauchez
wiley   +1 more source

Are Estimates of Lower Continental Crust Bulk Composition Biased Due to Seismic Anisotropy?

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract Most seismic inferences on the bulk composition of the lower continental crust are based on P‐wave velocities inferred from seismic wide‐angle data, for which the direction of propagation in the target region is sub‐horizontal. Given the likely presence of anisotropy in many parts of the lower continental crust, these estimates could be biased
Zheng Luo, Othmar Müntener, György Hetényi, Klaus Holliger   +3 more
wiley   +1 more source

Thermodynamic Constraints on H2 Production and Habitability From Mg‐Rich Serpentinites as Mars Analogs

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Serpentinization produces hydrogen and methane through abiotic water‐rock interactions, potentially supporting chemotrophic life in planetary subsurface environments. Serpentine deposits in the Martian Noachian landscapes of Nili Fossae and the Southern Highlands have been considered as potential paleo‐habitable zones. However, the geochemical
Devan M. Nisson, Mohit Melwani Daswani, Emmy B. Hughes, Scott M. Perl, Varsha M. Nair, H. M. T. G. A. Pitawala, Sanjeewa P. K. Malaviarachchi, P. L. Dharmapriya, Meththika Vithanage, Amit Basu Sarbadhikai, Francis Rivera‐Hernández, Suniti Karunatillake   +11 more
wiley   +1 more source

Thermobarometry of garnet peridotites and granulites from the Blanský Les Massif [PDF]

, 2012
English abstract Granulites of Moldanubian Zone are usually characterized by the presence of HP/UHP rocks of mafic and ultramafic compositions. The relationships between UHP rocks and granulites and their metamorphic history are subjects of many ...
Urychová, Michala
core  

The fabric of the granulites of Mont Tremblant Park, Quebec

, 1968
The fabric of the highly deformed and recrystallized gneisses formed under granulite facies conditions of metamorphism are described from Mont Tremblant Park, Quebec, Canada.
Michael Katz
core   +1 more source

Transpressive dextral shear in the Italva-Itaperuna section, Northern State of Rio de Janeiro, Brazil

Anais da Academia Brasileira de Ciências, 2008
Structural analysis carried out on a segment of the Neoproterozoic Ribeira Belt, southeastern Brazil, show that it represents part of the transpressive dextral orogen related to the Central Mantiqueira Province.
Tiago R. Karniol, Rômulo Machado, Nolan M. Dehler   +2 more
doaj   +1 more source

Constraining the Protoliths of the Apollo Granulite Suite

The Planetary Science Journal
The Apollo granulite suite represents the metamorphosed products of impact-contaminated polymict and monomict lunar breccias. We combine bulk and mineral major and trace element systematics with noble gas isotopes to constrain the highland lithologies ...
J. F. Pernet-Fisher, K. H. Joy, M. Nottingham, M. E. Hartley, R. Tartèse   +4 more
doaj   +1 more source

PALEOARCHEAN MAFIC ROCKS OF THE SOUTHWESTERN SIBERIAN CRATON: PRELIMINARY GEOCHRONOLOGY AND GEOCHEMICAL CHARACTERIZATION

Геодинамика и тектонофизика, 2017
The Siberian craton consists of Archean blocks, which were welded up into the same large unit by ca 1.9 Ga [Gladkochub et al., 2006; Rojas-Agramonte et al., 2011].
A. V. Ivanov, I. V. Levitsky, V. I. Levitsky, E. I. Demonterova, L Z. Reznitsky   +4 more
doaj   +1 more source

Petrogenesis of metaophiolitic granulites from SE Anatolia

, 2016
University of Minnesota M.S. thesis. June 2016. Major: Earth Sciences. Advisors: Donna Whitney, Christian Teyssier. 1 computer file (PDF); v, 77 pages.Metaophiolitic rocks exposed in southeastern Anatolia record the evolution of the Southern Neotethys ...
Awalt, Mitchell
core  

Stealth Metasomatism in Granulites from Ivrea (NW Italy): Hydration of the (Variscan) Lower Crust by Melt Flow

Geosciences
Granulites and associated dykes from the less well-studied southern Ivrea–Verbano Zone (around Ivrea town) are characterized by combining field, macro, micro and chemical (major and trace-element mineral composition) data to identify chemical and ...
Stylianos Karastergios, Simona Ferrando, Barbara E. Kunz, Maria Luce Frezzotti   +3 more
doaj   +1 more source