Hydrothermal alteration at the Panorama Formation, North Pole Dome, Pilbara Craton, Western Australia [PDF]
Precambrian Research (2006) 151, 211-223, 2014 An airborne hyperspectral remote sensing dataset was obtained of the North Pole Dome region of the Pilbara Craton in October 2002. It has been analyzed for indications of hydrothermal minerals. Here we report on the identification and mapping of hydrothermal minerals in the 3.459 Ga Panorama Formation and surrounding strata. The spatial distribution of
arxiv +1 more source
Biomimetic fabrication and tunable wetting properties of three-dimensional hierarchical ZnO structures by combining soft lithography templated with lotus leaf and hydrothermal treatments [PDF]
CrystEngComm, 2013,, 2013 Three-dimensional hierarchical ZnO films with lotus-leaf-like micro/nano structures were successfully fabricated via a biomimetic route combining sol-gel technique, soft lithography and hydrothermal treatments. PDMS mold replicated from a fresh lotus leaf was used to imprint microscale pillar structures directly into a ZnO sol film.
arxiv +1 more source
Numerical computation of hydrothermal fluid circulation in fractured Earth structures [PDF]
Geophysical Journal International, 1998 Summary Hydrothermal fluid circulation through porous Earth materials is an important physical phenomenon occurring in both submarine and continental environments. Irregularly interconnected discrete fractures are pervasive in nearly all Earth materials, providing preferential paths for fluid flow and controlling the circulating fluid patterns. Most
Jianwen Yang +2 more
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Reactivity of dolomitizing fluids and Mg source evaluation of fault-controlled dolomitization at the Benicàssim outcrop analogue (Maestrat Basin, E Spain) [PDF]
, 2014 Peer ...
Bons, P. D. +7 more
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Sea-floor tectonics and submarine hydrothermal systems [PDF]
, 2005 The discovery of metal-depositing hot springs on the sea floor, and especially their link to chemosynthetic life, was among the most compelling and significant scientific advances of the twentieth century. More than 300 sites of hydrothermal activity and
de Ronde, Cornell D. J. +2 more
core +1 more source
Evidence for Localized High Temperature Hydrothermal Fluid Flow within the Sub-Crater Environment of the Rochechouart Impact Structure: Observations from a Polymict Breccia Dike [PDF]
, 2015 Hypervelocity impacts into volatilebearing terrestrial targets can initiate hydrothermal circulation for a finite period of time; evidence for this is preserved in approximately one-third of impact structures on Earth [1, 2].
Lambert, P., Lee, M.R., Simpson, S.L.
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When do we need pan-global freeze to explain ^(18)O-depleted zircons and rocks? [PDF]
, 2011 Rocks with δ^(18)O values of less than 5‰ SMOW (Standard Mean Ocean Water) contain oxygen derived from ∼0‰ seawater or meteoric (rain or melted snow,
Bindeman, Ilya
core +1 more source
Structural transition and superconductivity in hydrothermally synthesized FeX (X = S, Se) [PDF]
, 2015 Tetragonal beta-FeSe obtained by hydrothermal reaction is not superconducting and transforms to a triclinic structure at 60 K unlike superconducting FeSe from solid state synthesis, which becomes orthorhombic at 90 K. In contrast, tetragonal iron sulphide FeS from hydrothermal synthesis is superconducting at 4.8 K but undergoes no structural transition.
arxiv +1 more source
Numerical simulation of hydrothermal vent‐induced circulation at Endeavour Ridge [PDF]
Journal of Geophysical Research: Oceans, 2005 Hydrothermal venting at Endeavour Ridge is focused at five major vent fields spaced at ∼2‐km intervals along a narrow (∼1 km wide) north‐south trending rift‐valley. A Princeton Ocean Model with an axially symmetric rift‐valley centered within a rotating, full‐depth (2400 m) stratified ocean is used to simulate the circulation and associated temperature
Mikhail V. Anisimov +2 more
openaire +2 more sources
The role of high- and low-temperature ocean crust alteration for the marine calcium budget [PDF]
, 2007 Calcium (Ca) is a key element for the understanding of the chemical evolution of the ocean and for the global climate on long geological time scales.
Amini, Marghaleray
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