They find that the ore-forming fluids were derived from a magmatic system and strictly controlled by fault zones and conclude that the Zhijiadi Ag-Pb-Zn deposit is a volcanic or subvolcanic-related hydrothermal deposit
and not an epithermal one as previously predicted.
Chang (2007) describes the Bijiashan deposit as a medium to low-temperature hydrothermal deposit
hosted by upper Triassic limestone of the Sanhedong Formation.
Hot spring fluids are typically laden with dissolved mineral ions that, when they precipitate out and create the hydrothermal deposit
, enhance fossilization of all types of biosignatures," said Sherry.
and Smejkal, V.: 1978, Isotopic criteria of the exogenous origin of carbonates and sulphides at the Okrouhla Radoun hydrothermal deposit
Later in the year, another CORK will be placed in a hole that is to be drilled in the large TAG hydrothermal deposit
. This hydrothermally active site is situated in the sediment-free rift valley of the Mid-Atlantic Ridge at 26 |degrees~ N.
Sweeney, "A high-temperature hydrothermal deposit
on the seabed at a Gulf of California Spreading Center," Earth and Planetary Science Letters, vol.
On the basis of geological characteristics, stable isotopic analysis, and the mineralization temperature, there are two main views that were proposed to interpret its genesis, for example, (1) subvolcanic rock-hosted medium-low temperature hydrothermal deposit
 and (2) epithermal deposit [17, 73].
NASA's Mars Reconnaissance Orbiter (MRO) spacecraft has been circling the red planet since March 2006, and it found large hydrothermal deposits
in the Eridania basin - a region in southern Mars that was once filled by a sea with about 50,000 cubic miles of water and now has some of the oldest exposed rocks on the planet's surface.
TEHRAN (FNA)- The discovery of evidence for ancient sea-floor hydrothermal deposits
on Mars identifies an area on the planet that may offer clues about the origin of life on Earth.
It can form massive, either sedimentary or hydrothermal deposits
(Hanor 2000; Griffith & Paytan 2012), but is also common as a dispersed authigenic mineral in marine sediments (Paytan et al.