Results 101 to 110 of about 17,505 (279)

Mantle heterogeneity during the formation of the North Atlantic Igneous Province: Constraints from trace element and Sr-Nd-Os-O isotope systematics of Baffin Island picrites [PDF]

open access: yes, 2004
Sr-Nd-Os-O isotope and major and trace element data from ~62 Ma picrites from Baffin Island constrain the composition of mantle sources sampled at the inception of North Atlantic Igneous Province (NAIP) magmatism.
Eiler, J.   +5 more
core   +1 more source

The Magnetic Fingerprint of Pulsed Granite Magma Emplacement and Alteration: Slaufrudalur Pluton, Iceland

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 9, September 2025.
Abstract Magma reservoirs typically form through the incremental emplacement of smaller magma pulses over extended timescales. Pulsed reservoir growth significantly impacts a magma body's temperature evolution, chemical differentiation potential, and the probability, scale, and timing of volcanic eruptions.
O. Quintela   +11 more
wiley   +1 more source

Multi‐Stage Crustal Thickening, Surface Uplift, and Collision in the Western Himalaya‐Karakoram‐Tibet Orogen Revealed by Chemical Mohometry

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 9, September 2025.
Abstract The Himalaya‐Karakoram‐Tibet (HKT) orogen provides an unrivaled opportunity to study the dynamic linkages between deep and surface processes during collisional orogenesis. However, these efforts are hindered by conflicting interpretations on the number and timing of collisional events, and the timing of crustal thickening and associated ...
Ian W. Hillenbrand, Victor E. Guevara
wiley   +1 more source

European REE resources: alkaline magmatism and beyond [PDF]

open access: yes, 2015
Europe has resources of many of the critical metals, pa rticularly the rare earth el ements (REE); yet economic, environmental and accessibility issues have combined to slow progress toward the explo itation of these resources.
Deady, E.A.   +2 more
core  

The development of magmatism along the Cameroon Volcanic Line: evidence from seismicity and seismic anisotropy [PDF]

open access: yes, 2014
The Cameroon Volcanic Line (CVL) straddles the continent-ocean boundary in West Africa but exhibits no clear age progression. This renders it difficult to explain by traditional plume/plate motion hypotheses; thus, there remains no consensus on the ...
Bastow, I.D.   +5 more
core   +1 more source

Uranium Addition and Loss in Serpentinites: The Potential Role of Iron Oxides

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 9, September 2025.
Abstract Fluid‐mobile uranium serves as a tracer for water‐rock alteration in serpentinized mantle rocks, which constitute an important uranium reservoir. However, the mechanism for uranium addition, where uranium is hosted, and the stability of the uranium enriched material during subduction is not settled.
Emily H. G. Cooperdock   +2 more
wiley   +1 more source

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