Results 91 to 100 of about 23,492 (308)
On the fluid-mobility of molybdenum, tungsten, and antimony in subduction systems [PDF]
, 2011 Molybdenum (Mo) and tungsten (W) have long been regarded as being more or less immobile during slab fluid-induced arc magma generation. Here we characterize about 180 samples of young, predominantly mafic to intermediate tephras and lavas for their Mo,
Garbe-Schönberg, Dieter +7 more
core
The origin of kimberlite [PDF]
, 1980 A new diapiric model for kimberlite genesis takes into account recent interpretations of peridotite-CO_2-H_2O melting relationships. A minor thermal perturbation at depth might trigger release of reduced vapors with major components C-H-O.
Wyllie, Peter J.
core +1 more source
Geochemistry Geophysics Geosystems, 2018 The role of lithospheric architecture and the mantle in the genesis of iron oxide copper‐gold (IOCG) deposits is controversial. Using the example of the Precambrian Gawler Craton (South Australia), which hosts the giant Olympic Dam IOCG deposit, we ...
R. Skirrow +4 more
semanticscholar +1 more source
Intraplate Basalts in Eastern Continental China Record the Subduction History of the Pacific Plate
Geophysical Research Letters, Volume 52, Issue 16, 28 August 2025.Abstract To assess whether intraplate magmatism in eastern continental China records the subduction history of the Pacific plate, we plotted elemental compositions of the volcanic rocks in this region since the Early Cretaceous as a function of age. These rocks show distinct compositional transitions at ∼110 and ∼50 Ma, coinciding with the cessation of
Pu Sun +5 more
wiley +1 more source
A Gravity Study of the Crustal Structure Beneath the Young Amagmatic Rukwa‐Tanganyika Rift Zone
Tectonics, Volume 44, Issue 8, August 2025.Abstract The Rukwa‐Tanganyika Rift Zone (RTRZ), experiencing multiphase rifting, forms the nonvolcanic southern part of the Western Branch of the East African Rift. We investigate the crustal structure beneath the RTRZ to understand how strain migrates beneath multiphase rifts.
Emmanuel A. Njinju, Estella A. Atekwana
wiley +1 more source
Геодинамика и тектонофизикаThis paper devoted to the mantle xenoliths with evidence of modal metasomatic alteration from the Obnazhennaya kimberlite pipe (Kuoika kimberlite field).
T. V. Kalashnikova +2 more
doaj +1 more source
Rear polymineral zone of near-veined metasomatic aureole in mesothermal Zun-Holba gold deposit (Eastern Sayan) [PDF]
, 2015 Unique data of the mineralogical and petrochemical zoning of near- veined metasomatic aureole of mesothermal Zun-Holba gold deposit are presented and discussed.
Abramova, Raisa Nikolaevna +2 more
core +1 more source
Petrochemical and petrophysical characterization of the lower crust and the Moho beneath the West African Craton, based on Xenoliths from Kimberlites [PDF]
Additional evidence to the composition of the lower crust and uppermost mantle was presented in the form of xenolith data. Xenoliths from the 2.7-Ga West African Craton indicate that the Moho beneath this shield is a chemically and physically gradational
Haggerty, Stephen E., Toft, Paul B.
core +1 more source
Записки Горного институтаThe article presents the first data on biotite-hornblende lamprophyres discovered at the Peshchernoe gold deposit. We consider the geological position of lamprophyre dikes in the deposit structure and the relationship of these rocks with tectonically ...
Dmitrii V. Kuznetsov +3 more
doaj
Yankuang ceshi, 2013 The Zhuxi deposit is a new discovery of copper-tungsten dominated large-super-large ore deposit with great mineralization potential situated in the Zhuxi Area, Jingdezhen City, Jiangxi Province.
SU Xiao-yun +10 more
doaj