The Chinese Continental Scientific Drilling (CCSD) project aims to reconstruct the formation and exhumation mechanisms of ultra-high pressure (UHP) metamorphic terrains. The major goals are to investigate the variation of fluid composition with depth, the flow patterns, and cycling mechanisms, as well as changes of the fluid regime in time.
The drill site is located in the southern part of the Sulu UHP terrane. Eclogite and associated kyanite quartzite, garnet-jadeite quartzite, and ultramafic rocks are distributed as intercalated layers of gneissic country rock. All rock types have been subjected to the same UHP event. The CCSD consists of three pilot holes and a main drill hole which reached its final depth of 5,180 m in March 2005. Besides these, many shallow holes have been drilled for mineral exploration in the area.
Ref.:
- Liu Xiangwen, Jin Zhenmin, Qu Jing, and Wang Lu (2005): Exsolution of ilmenite and Cr-Ti magnetite from olivine of garnet-wehrlite. Science in China, Series D (Earth Sciences), 48(9), 1368-1376.
- Yilin Xiao, Zheming Zhang, Hoefs, J., and van den Kerkhof, A. (2006): Ultrahigh-pressure metamorphic rocks from the Chinese Continental Scientific Drilling Project: II Oxygen isotope and fluid inclusion distributions through vertical sections. Contributions to Mineralogy and Petrology 152, 443-458.
-
http://www.icdp-online.de/news/workshops/abstracts/AGU04/V14A-07.htm.22 entries listed. 14 valid minerals.
