Mineral inclusions in lithospheric diamonds
Initially, it may seem extremely daunting to be sitting in front of several thousand carats of
small diamonds, knowing that the likelihood of finding a diamond with a meaningful …
small diamonds, knowing that the likelihood of finding a diamond with a meaningful …
[HTML][HTML] Lawsonite composition and zoning as tracers of subduction processes: A global review
DL Whitney, KF Fornash, P Kang, ED Ghent, L Martin… - Lithos, 2020 - Elsevier
Lawsonite is an abundant hydrous mineral in oceanic crust, sediments, and metasomatic
rocks at depths of~ 45 to 300 km in most subduction zones, but it is rarely preserved in the …
rocks at depths of~ 45 to 300 km in most subduction zones, but it is rarely preserved in the …
Subducted organic matter buffered by marine carbonate rules the carbon isotopic signature of arc emissions
Ocean sediments consist mainly of calcium carbonate and organic matter (phytoplankton
debris). Once subducted, some carbon is removed from the slab and returns to the …
debris). Once subducted, some carbon is removed from the slab and returns to the …
Favorable P–T–ƒO2 conditions for abiotic CH4 production in subducted oceanic crusts: a comparison between CH4-bearing ultrahigh-and CO2-bearing high …
Subduction is a key element in the carbon cycle between the Earth's surface and deep
interior. In addition to pressure (P) and temperature (T), oxygen fugacity (ƒO 2) is an …
interior. In addition to pressure (P) and temperature (T), oxygen fugacity (ƒO 2) is an …
Deformation and temperature variation along thrust-sense shear zones in the hinterland-foreland transition zone of collisional settings: A case study from the Barbagia …
Abstract In the Internal Zone of a continental collisional orogen, first-order contractional
shear zones accommodate crustal shortening. Structural investigations at different scales …
shear zones accommodate crustal shortening. Structural investigations at different scales …
Complexity of graphite formation in response to metamorphic methane generation and transformation in an orogenic ultramafic body
The fate of carbon in subduction is explored by considering fluid-rock interactions in a body
of metamorphosed ultramafic rocks from the Appalachian belt as potential proxies for …
of metamorphosed ultramafic rocks from the Appalachian belt as potential proxies for …
Tracing carbonate dissolution in subducting sediments by zinc and magnesium isotopes
Carbonate dissolution in subduction zones transfers surface carbon to the mantle and plays
an important role in regulating global carbon cycles through geologic time. Petrological …
an important role in regulating global carbon cycles through geologic time. Petrological …
Episodic hydrofracturing and large-scale flushing along deep subduction interfaces: Implications for fluid transfer and carbon recycling (Zagros Orogen, southeastern …
We investigate the late Cretaceous blueschist-facies (480° C-1.8 GPa) segment of the
Zagros suture zone, a well-preserved block-in-matrix paleo-subduction channel. We aim to …
Zagros suture zone, a well-preserved block-in-matrix paleo-subduction channel. We aim to …
Coupled cycling of carbon and water in the form of hydrous carbonatitic liquids in the subarc region
W Chen, S Keshav, W Peng… - Journal of Geophysical …, 2023 - Wiley Online Library
The melting behavior of subducted ophicarbonate is experimentally investigated under
conditions relevant for slabs at subarc depths (2.5–6 GPa and 650–1000° C). Hydrous …
conditions relevant for slabs at subarc depths (2.5–6 GPa and 650–1000° C). Hydrous …
Paleocene‐Eocene High‐Pressure Carbonation of Western Alps Serpentinites: Positive Feedback Between Deformation and CO2‐CH4 Fluid Ingression …
Meter‐to hectometer‐size horizons of carbonate‐bearing talcschists are found along or near
the contacts between the different Liguro‐Piemont subduction slices. Through mineral and …
the contacts between the different Liguro‐Piemont subduction slices. Through mineral and …