A weathering-related origin of widespread monazite in S-type granites

Details A weathering-related origin of widespread monazite in S-type granites A weathering-related origin of widespread monazite in S-type granites

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986gecoa..50..171s&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 50, Issue 1, pp.171-175

Computer Science

9

Scientific paper

The S-type granite suites comprising more than a quarter of the extensively developed granites in the Lachlan Fold Belt, Australia, contain monazite which may be related to the chemical weathering of the sedimentary source rocks. We report a process whereby chemical weathering fixes mobile rare-earth elements (REE) in hydrous phosphate phases such as florencite and rhabdophane. This material contains up to 50 wt% LREE and occurs as very small particles (~3 m). Dehydration of these hydrous REE phases during anatexis directly yields monazite. The low solubility of phosphorus in S-type granite melts inhibits dissolution of both monazite and apatite. Refractory monazite may be thus entrained and transported in S-type granites in a manner similar to processes resulting in inherited zircon. Since both Th and the light REE are major components in monazite, materials containing this minute phase may be of widespread geochemical significance in both granites and metamorphic rocks.

Affiliated with

Also associated with

No associations

Rating

A weathering-related origin of widespread monazite in S-type granites 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 A weathering-related origin of widespread monazite in S-type granites, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A weathering-related origin of widespread monazite in S-type granites will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1845817