Daily News
Project Acronym: HOTSPOT | State: Completed | Expedition ID: 5036
ins.: 2011-01-15 01:00, 15 yrs ago

Category:
SnakeRiver

HOTSPOT: 2011-01-15
Quality, not quantity, summed up drilling operations today. Despite short ...

Quality, not quantity, summed up drilling operations today. Despite short runs, it appears that we may be getting out of the nasty clay/mudstone (knock on wood) and into more interesting material. The last runs, pulled this afternoon and this morning, are of well-cemented, grain-to-clast supported pebble conglomerate. Bedding appears to be present in the uppermost foot of the run, at about 5748.5', but with increased depth, clasts become more densely spaced and bedding is not apparent. Clasts are predominantly sub-angular and are mainly (85%) lithic fragments of white to pinkish felsic-looking material. There also appears to be some fine-grained red lithic fragments as well (chert?), but these make up <5% of the rock.
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