Ion-microprobe studies yield DO (5dO 2 0.52 z dO) values in magnetite from the Rumurti chondrite (RC) PCA91241 (which is paired with PCA91002) of 13.1 to 13.9‰, slightly higher than that in O from whole-rock R samples. Despite DO values in whole-rock RCs that are much (by ca. 1.6‰) higher than in whole-rock LL chondrites, the DO in R magnetite is much lower (by ca. 2‰) than the values (14 to 17...

Serpentinization environments are key locations that support microbial communities by the abiogenic formation of reduced species associated with peridotite alteration. Here we studied partially serpentinized peridotites from Chimaera seeps (Turkey), an active continental serpentinization system vents highly methane-rich fluids, to investigate impact water-rock interaction on sulfide and metal m...

Accurately estimating the paleomagnetic field intensity recorded in terrestrial and planetary materials is key to understanding dynamo processes. Thellier-series stepwise-heating methods with partial thermoremanent magnetization (pTRM) checks for alteration are considered most reliable technique even though pTRM shown be incapable of detecting entirety thermal alteration. We utilize a recently ...

The concept whereby heat is recovered from a geothermal reservoir by replacing the native aqueous phase with essentially pure high-pressure carbon dioxide as the working fluid is referred to as an Enhanced Geothermal System with CO2 (EGSCO2). The concept has yet to be tested in the field, and the chemical consequences, both within the reservoir itself, and at its periphery, are not fully unders...

Hyperspectral remote sensing records reflectance or emittance data in a large sum of contiguous and narrow spectral bands, and thus has many information in detecting and mapping the mineral zones. On the other hand, the geological and geophysical data gives us some other fruitful information about the physical characteristics of soil and minerals that have been recorded from the surface. ...

The airborne hyper-spectral survey system CASI/SASI, which has an integrated for gathering both image spectral data, is at the cutting edge developments in remote-sensing field. It can be used to directly identify surface objects based on diagnostic characteristics. In this paper, CASI/SASI were Huaniushan gold-silver-lead-zinc ore district–Gansu produce a lithologic map, altered minerals, and ...

Chelating agents’ application for well stimulation is gaining more and interest, as they can perform under harsh conditions. However, the mutual influence of surfactants chelating agents on wettability alteration hydrophobic carbonate rock conditions high-temperature relatively unexplored. This paper aims to study interfacial processes surface in presence EDTA-based agent different classes. Cat...

Introduction: CM carbonaceous chondrites display a wide range of aqueous alteration products that occurred by low temperature water-rock reactions on their parent bodies [1,2]. Previous modeling studies have verified that these reactions occurred at low temperatures (0-50C), for they reproduced many of the observed mineral assemblages [3]. The dominant phases are tochilinite and Mg-Fe phyllosil...