Results 221 to 230 of about 151,236 (376)

The contribution of metamorphic petrology to understanding lithosphere evolution and geodynamics

, 2014
Michael Brown
semanticscholar   +1 more source

Giant Porphyry Copper Deposits Caused by a Slab Jamming in the Mantle Transition Zone

Terra Nova, EarlyView.
ABSTRACT Two giant porphyry copper deposits in the Southern Central Andes formed during the Miocene–Pliocene transition when a bend in the subducting Juan de Fernández hotspot chain jammed in the mantle transition zone, causing mega‐scale slab‐kinking. This geometry implies mechanical resistance that caused East–West compression and eventually a thrust‐
Nipaporn Nakrong, Marnie Forster, Wim Spakman, Hielke Jelsma, Francois Gaboury, Gordon Lister   +5 more
wiley   +1 more source

Magmatic immiscibility provides phosphate for prebiotic chemistry. [PDF]

Sci Adv
Weller D, Matreux T, Smokers IBA, Schmid A, Mast CB, Dingwell DB, Braun D, Scheu B.   +7 more
europepmc   +1 more source

Diagenesis of the Middle Eocene Nummulite Bank of Giza Pyramids Plateau, Egypt--Petrologic and 18O/16O Evidence: ABSTRACT

, 1990
Hanafy Holail
openalex   +1 more source

Fernandina Volcano's evolved, well‐mixed basalts: Mineralogical and petrological constraints on the nature of the Galapagos plume [PDF]

, 2000
James F. Allan, Tom Simkin
openalex   +1 more source

Long‐Term Storage of Meteoric Water in the Variscan Basement: Stable Isotope Constraints (δD–δ18O)

Terra Nova, EarlyView.
ABSTRACT F‐Ba‐Pb‐Zn (±Ag) deposits near the unconformity between the Armorican and Aquitaine basins formed by mixing surface waters and brines with fluid ascending from the basement. To better constrain the source of this fluid and the conditions of mixing, we analyzed the hydrogen (δDwater) and oxygen (δ18Owater) isotopic composition of water trapped ...
Loïc Bouat, Pierre Strzerzynski, Véronique Gardien   +2 more
wiley   +1 more source

Origin of continental crust on early Earth. [PDF]

Natl Sci Rev
Zheng YF.
europepmc   +1 more source

Geochemistry and petrology of Victorian mantle xenoliths

, 2021
Alan Greig
openalex   +2 more sources

Dating C/S Structures in Syntectonic Granites by In Situ Rb‐Sr Analyses on Muscovite

Terra Nova, EarlyView.
ABSTRACT The interplay of crystallisation, deformation and fluid–rock interactions makes deciphering geochronological information complex in syntectonic granites. In this study, we apply in situ Rb‐Sr analyses to selected samples from the Questembert Variscan syntectonic granite in Western France, which was emplaced along the South Armorican Shear Zone
Philippe Boulvais, Romain Tartèse
wiley   +1 more source

Microbial Community Composition and Function in Jiangsu Oil Reservoir Cores, China. [PDF]

Environ Microbiol Rep
Wang BW, Liu YF, Chen LG, Wang B, Qian ZH, Yang F, Cai JC, Zhou L, Yang SZ, Gu JD, Mu BZ.   +10 more
europepmc   +1 more source