Other
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004gecoa..68.5197w&link_type=abstract
Geochimica et Cosmochimica Acta, Volume 68, Issue 24, p. 5197-5204.
Other
Scientific paper
The solubility of quartz was determined using a hydrothermal diamond anvil cell (HDAC) within the temperature and pressure ranges of 126 to 490°C and up to 8.9 kbar, respectively. A novel approach has been used to measure the amount of dissolved silica. The quartz was abraded into spheres which have a diameter of ˜40 μm. The spheres were then placed in pure water inside the diamond anvil cell and heated externally. Because the transparency of the diamonds allows direct observation of the sample chamber during the experiment, we were able to estimate the amount of quartz dissolved in the water at various stages of the dissolution process by measuring the decrease in the sphere’s diameter over time. Experiments were performed along isochores between 0.92 and 0.99 g/cm3. The maximum solubility measured was 0.165 molal. The experimental solubility data were limited to 370°C because of overestimation of solubilities above this temperature. Reprecipitation of silica inside the HDAC sample chamber and the refaceting of the spheres to trigonal form at temperatures above 350°C are major contributors to the overestimation.
Brenan James M.
Henderson Grant S.
Wang Halan M.
No associations
LandOfFree
Measuring quartz solubility by in situ weight-loss determination using a hydrothermal diamond cell does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Measuring quartz solubility by in situ weight-loss determination using a hydrothermal diamond cell, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measuring quartz solubility by in situ weight-loss determination using a hydrothermal diamond cell will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1025667