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Project Acronym: CCSDP | State: Completed | Expedition ID: 5004

ins.: 2022-09-30 17:41, 3 yrs ago
By: sql
Category: Donghai_
Donghai_

CCSDP/Donghai: 2001-11-22

The drillers of CCSDP borehole meet a very hard
High quartz content granitic gneiss cores from the depth around 10021 m or so.

The drillers of CCSDP borehole meet a very hard problom of slow panetration that is caused by very hard rock-----high quartz content granitic gneiss.