Initial results from the Oman drilling project multi‐borehole observatory: Petrogenesis and ongoing alteration of mantle peridotite in the weathering horizon
Abstract The Oman Drilling Project “Multi‐Borehole Observatory”(MBO) samples an area of
active weathering of tectonically exposed peridotite. This article reviews the geology of the …
active weathering of tectonically exposed peridotite. This article reviews the geology of the …
Tectonic development of the Samail ophiolite: High‐precision U‐Pb zircon geochronology and Sm‐Nd isotopic constraints on crustal growth and emplacement
New high‐precision single grain U‐Pb zircon geochronology and whole rock Nd isotopic
data provide insight into the magmatic and tectonic development of the Samail ophiolite. The …
data provide insight into the magmatic and tectonic development of the Samail ophiolite. The …
Subsurface structure of a submarine hydrothermal system in ocean crust formed at the East Pacific Rise, ODP/IODP Site 1256
ODP/IODP Hole 1256D penetrates an in situ section of ocean crust formed at the East
Pacific Rise, through lavas and sheeted dikes and∼ 100 m into plutonic rocks. We use …
Pacific Rise, through lavas and sheeted dikes and∼ 100 m into plutonic rocks. We use …
Rapid crustal accretion and magma assimilation in the Oman‐UAE ophiolite: High precision U‐Pb zircon geochronology of the gabbroic crust
New high‐precision U/Pb zircon geochronology from the Oman‐United Arab Emirates (UAE)
ophiolite provides insight into the timing and duration of magmatism and the tectonic setting …
ophiolite provides insight into the timing and duration of magmatism and the tectonic setting …
Characterization of hyperalkaline fluids produced by low‐temperature serpentinization of mantle peridotites in the Oman and Ligurian ophiolites
A regional survey of alkaline springs in Oman and Ligurian ophiolites shows that the
alkaline water compositions significantly vary from one ophiolite to the other and within the …
alkaline water compositions significantly vary from one ophiolite to the other and within the …
Perspectives on the origin of plagiogranite in ophiolites from oxygen isotopes in zircon
The formation of oceanic plagiogranite has been attributed primarily to either 1) extreme
fractional crystallization of a mantle melt, or 2) partial melting of hydrated mafic crust, with …
fractional crystallization of a mantle melt, or 2) partial melting of hydrated mafic crust, with …
Cumulate formation and melt extraction from mush-dominated magma reservoirs: the melt flush process exemplified at mid-ocean ridges
Volcanism is the surface expression of extensive magmatic systems, with their intrusive
counterpart representing~ 80% of the total magma budget. Our knowledge of igneous …
counterpart representing~ 80% of the total magma budget. Our knowledge of igneous …
Dacite petrogenesis on mid-ocean ridges: evidence for oceanic crustal melting and assimilation
Whereas the majority of eruptions at oceanic spreading centers produce lavas with relatively
homogeneous mid-ocean ridge basalt (MORB) compositions, the formation of tholeiitic …
homogeneous mid-ocean ridge basalt (MORB) compositions, the formation of tholeiitic …
Insights into C and H storage in the altered oceanic crust: Results from ODP/IODP Hole 1256D
Carbon and hydrogen concentrations and isotopic compositions were measured in 19
samples from altered oceanic crust cored in ODP/IODP Hole 1256D through lavas, dikes …
samples from altered oceanic crust cored in ODP/IODP Hole 1256D through lavas, dikes …
Dynamic accretion beneath a slow‐spreading ridge segment: IODP Hole 1473A and the Atlantis Bank Oceanic Core Complex
Abstract 809 deep IODP Hole U1473A at Atlantis Bank, SWIR, is 2.2 km from 1,508‐m Hole
735B and 1.4 from 158‐m Hole 1105A. With map**, it provides the first 3‐D view of the …
735B and 1.4 from 158‐m Hole 1105A. With map**, it provides the first 3‐D view of the …