JR Daily 3 Apr 09
PRESENT ACTIVITY: Update as of 0630 hr 4 April 2009 XCB coring in Hole U1333C from 176.0 mbsf to basement contact at ~180 mbsf. Once coring is completed in this hole, we will recover the drillstring and move to Prospectus Site PEAT-04C.
LOCATION: Site U1333: Hole U1333A (PEAT-3C); Preliminary Position: 10°30.997’N, 138°25.175’W; Final Water Depth: 4865.0 mbrf / 4853.7 mbsl
WEATHER: Heading: various. Wind: 17-18 kts gusting 22 kt @ 035°- 045°; Seas: 4 ft @ 6 sec from 050°; Swell: 6 ft @ 8 sec from 060°, Sea Water: 26°C; Barometer: 1012.0 mb steady; Air: 25°C; Heave:7 ft; Max Pitch: 2° @ 6 sec; Max Roll: 3° @ 8 sec. Cloudy skies with winds from northeast. Excellent visibility. See sunset video on Leslie’s blog.
TIME BREAKDOWN: (by nearest 1/4 hour): 0000-2400 Piston core U1333C-4H to -20H (20.6 mbsf to 142.6 mbsf). 17 cores, 142.6 meters cored and 153.88 meters recovered.
CHALLENGE: Calculate percent recovery for cores 4H-20H and send your answer using the Comment function at the bottom of the page.
OPERATING PLAN (next 24-48 hours): Once operations are concluded at Site U1333, we will move to Prospectus Site PEAT-04C located ~411 nm southeast of present position. We expect the transit to take 1.5 days. The plan for PEAT-04C is to APC/XCB three holes to basement (~269 mbsf). We will log the first hole with a modified triple combo. Holes U1334B/C will be spot cored as required.
Photos: Top — It’s anyone’s guess. Hint: something to do with coring…send your ideas through the Comment function below (this one deserves a prize). Bottom — In control, a hand on the brake during coring at Site 1333. Credit: Leslie Peart, Education Director, Deep Earth Academy / IODP, and JR fan club president.