Chloride-rich brines are increasingly recognized as playing an important role in high pressure and temperature metamorphic and magmatic systems. The origins of these saline multicomponent fluids are debated, but experimental evidence suggests that regardless of their origin they must be important agents of rock alteration and mass transfer wherever they occur. Studies of the solubility of quart...

At the Tick Hill gold deposit, δ18Oquartz data for mineralised lithologies and surrounding rocks are similar fall within a narrow range of 10.5–13.7‰ V-SMOW. The highly quartzo-feldspathic mylonite has quartz δ18O (δ18Oquartz) values 11.3–13.6‰, which to both locally regionally, i.e. by itself does not provide useful exploration tool. from area most likely reflect late Isan hydrothermal overpri...

Minerals, fluid inclusions and stable isotopes have been studied in ultrahigh-pressure (UHP) OH-rich topaz^kyanite quartzites from Hushan (west of Dongai), in southern Sulu (China). The quartzites underwent a metamorphic evolution characterized by a peak stage (3 5 GPa and 730^8208C) with the anhydrous assemblage coesiteþ kyanite I, followed by an early near-isothermal decompression stage (2 9 ...

The solubility of uranium (U) in hydrothermal fluid is thought to be controlled by oxidation. In general, mainly transported as U(VI) oxidized fluid, but precipitated U(IV) reduced fluid. However, many geological observations indicate that metamorphic fluids, which are buffered rocks with protoliths such pelite or altered marine basalt, not enriched U. To explore the reason low U we simulated h...

Carbonate-hosted Pb–Zn deposits are of major economic importance. The Sichuan–Yunnan–Guizhou metallogenetic belt (SYGMB), located on the western margin Yangtze Block, comprises over 400 carbonated-hosted deposits. However, ore-forming fluids recorded in these have led to controversy regarding ore genesis. We investigated a fluid system for Maoping deposit SYGMB, based inclusions, and H–O–He–Ar ...

Understanding the factors that contribute to U^Pb discordance in zircon is essential for interpreting isotopic data and for assessing the validity of concordia intercept ages. Modification caused by interaction with metamorphic fluids is often cited as a primary means by which significant or even complete isotopic resetting of U^Pb systematics in zircon might be achieved under subsolidus condit...

Absence of test oracles is the grand challenge for testing complex scientific software. Metamorphic testing is the novel technique for developing test oracles on metamorphic relations. Although it is easy to find metamorphic relations based on general guidelines and domain knowledge, the ones that can adequately test the software are difficult to be developed. This paper introduces a machine le...