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Project Acronym: DeepCHALLA | State: Completed | Expedition ID: 5061
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... (?TBD)
- (inserted: 20.12.2016 01:00)
Lake Challa: 2016-12-20 ˇ
DeepCHALLA recovered the lacustrine sediment sequence of Lake Challa down ...
DeepCHALLA recovered the lacustrine sediment sequence of Lake Challa down to 214.8 meter below the lake floor, with almost certain 100% coverage over the uppermost 121.3 meter (ca.150,000 years ago to the present) and at least 80% coverage in the lower part of the sequence, down to the lowermost distinct seismic reflector displayed in the project logo. This reflector represents a 2-meter thick layer of volcanic sand and silt deposited ca.250,000 years ago, and overlies silty lacustrine clays deposited during early lake development. As readily observed through the transparent core liners, Lake Challa sediments are finely laminated throughout most of the recovered sequence. Down-hole logging from 187 meter depth to the surface produced continuous profiles of in-situ sediment composition that confer an absolute depth scale to both the recovered cores and their three-dimensional representation in seismic stratigraphy. (D. Verschuren) - (inserted: 18.11.2016 01:00)
Lake Challa: 2016-11-18 ˇ
Logging by night! (photo D. Verschuren)
Logging by night! (photo D. Verschuren) - (inserted: 17.11.2016 01:00)
Lake Challa: 2016-11-17 ˇ
Sunset view from the barge on Mt Kilimanjaro. (photo M.
Sunset view from the barge on Mt Kilimanjaro. (photo M. Van Daele) - (inserted: 16.11.2016 01:00)
Lake Challa: 2016-11-16 ˇ
Today a beautiful rainbow indicated that there might be a
Today a beautiful rainbow indicated that there might be a gold treasure in Lake Challa (photo: M. Van Daele) - (inserted: 14.11.2016 01:00)
Lake Challa: 2016-11-14 ˇ
The labwork includes the first microscopic analyses on smear slides ...
The labwork includes the first microscopic analyses on smear slides taken from the core catchers. As expected, a very high abundance of diatoms, mainly Nitzschia and Afrocymbella! - (inserted: 13.11.2016 01:00)
Lake Challa: 2016-11-13 ˇ
After finishing our second hole, the ICDP operational support team
After finishing our second hole, the ICDP operational support team (Jochem, Martin, Marco and Simona) arrived and started downhole logging. - (inserted: 09.11.2016 01:00)
Lake Challa: 2016-11-09 ˇ
Amazing sunrise from the barge and after 30m of cores
Amazing sunrise from the barge and after 30m of cores in hand! - (inserted: 08.11.2016 01:00)
Lake Challa: 2016-11-08 ˇ
The game is on! Yesterday, we've pulled up our first ...
The game is on! Yesterday, we've pulled up our first core section. After a smooth night and day shift, 21 Core sections were brought to the lab, equaling a whopping 63 meters of sediment record! (Photos by J. Dieleman, D. Verschuren en F. Peterse) - (inserted: 07.11.2016 01:00)
Lake Challa: 2016-11-07 ˇ
Our drivers Sam and Rasam bringing the teams up and ...
Our drivers Sam and Rasam bringing the teams up and down the lake every day. They are always in a good mood and unstoppable on the road! Asante sana (Photo by M. Van Daele) - (inserted: 05.11.2016 01:00)
Lake Challa: 2016-11-05 ˇ
Yesterday and today the platform was moved to its final ...
Yesterday and today the platform was moved to its final position on the lake. (Photos by M. Van Daele and I. Meyer) - (inserted: 03.11.2016 01:00)
Lake Challa: 2016-11-03 ˇ
Just finishing loading the barge with equipment and then drilling
Just finishing loading the barge with equipment and then drilling begins! - (inserted: 31.10.2016 01:00)
Lake Challa: 2016-10-31 ˇ
Just finishing loading the barge with equipment and then drilling
Just finishing loading the barge with equipment and then drilling begins! - (inserted: 28.10.2016 02:00)
Lake Challa: 2016-10-28 ˇ
Drilling operations begin in a couple days.
Drilling operations begin in a couple days. - (inserted: 25.10.2016 02:00)
Lake Challa: 2016-10-25 ˇ
You are invited to follow the progress of the upcoming
You are invited to follow the progress of the upcoming lake drilling operations. (ICDP) - (inserted: 17.10.2016 02:00)
Lake Challa: 2016-10-17 ˇ
Drilling the Crater Lake Challa at the boarder between Kenya ...
Drilling the Crater Lake Challa at the boarder between Kenya and Tanzania is in preparation. Scheduled start of drilling operations will be November 1, 2016. (D. Verschuren) - (inserted: 06.10.2016 02:00)
Lake Challa: 2016-10-06 ˇ
Drilling the Crater Lake Challa at the boarder between Kenya ...
Drilling the Crater Lake Challa at the boarder between Kenya and Tanzania is in preparation. Scheduled start of drilling operations will be November 1, 2016. (D. Verschuren)