Re-Equilibration Processes in Fluid Inclusion Assemblages

Re-Equilibration Processes in Fluid Inclusion Assemblages

Post-entrapment modifications reduce the reliability of fluid inclusions to determine trapping conditions in rock. Processes that may modify fluid inclusion properties are experimentally identified in this study using synthetic fluid inclusions in quartz with a well-defined composition and density. Modifications are characterized with microthermometry (homogenization and dissolution temperature...

Shock re-equilibration of fluid inclusions in crystalline basement rocks from the Ries crater, Germany

available online at http://meteoritics.org 247 © The Meteoritical Society, 2006. Printed in USA. Shock re-equilibration of fluid inclusions in crystalline basement rocks from the Ries crater, Germany Megan E. ELWOOD MADDEN1†*, David A. KRING2, and Robert J. BODNAR1 1Department of Geosciences, Virginia Polytechnic Institute, Blacksburg, Virginia 24060, USA 2Lunar and Planetary Laboratory, The Un...

Interpreting Geothermal Processes and Fluid Sources from Fluid Inclusion Organic Compounds and Co2/n2 Ratios

The distribution of organic species is explored using data acquired from a new dual quadrupole system that routinely measures eighteen gaseous species. The process of condensation and its affect on gas distribution is modeled, and a new discrimination diagram based on total gaseous species and the CO2/N2 ratio is introduced. We conclude that organic species concentrations indicate source; that ...

Physical and Biological Processes in Ichthyoplankton Assemblages

Fluid inclusion characteristics and molybdenite Re-Os geochronology of the Qulong porphyry copper-molybdenum deposit, Tibet

The Qulong porphyry copper and molybdenum deposit is located at the southwest margin of the Lhasa Terrane and in the eastern region of the Gangdese magmatic belt. It represents China’s largest porphyry copper system, with ∼2200 million tonnes of ore comprising 0.5 % Cu and 0.03 % Mo. The mineralization is associated with Miocene granodiorite, monzogranite and quartz-diorite units, which intrude...