ICDP Post-Operations International Workshop

This post-operation workshop in Pune, India highlights the achivements of the Koyna Pilot Hole drilling and discusses opportunities for future deep drilling at Koyna, a world-class site for studying reservoir-triggered...

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New milestone in Songliao Drilling

SK-II completed its stage IV (216mm diameter) last November at the depth of 5922.58m and after a long winter shutdown, started its final stage V (152mm diameter) on 4th May, 2017. As at the hole bottom, the temperature rises to...

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Hydrofrac tests in the Koyna pilot hole

The tests were carried out by a team comprising experts from Mesy-Solexperts and scientists from the Borehole Geophysics Research Laboratory (BGRL). The tests, made in the granitic basement, are the first of it's kind in the...

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EGU 2017

EGU 2018 will take place April 8-13 in Vienna - we are looking forward seeing you there!

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Important Transition at ICDP

Left: Brian Horsfield. Right: Axel Liebscher

As Chair of the ICDP Assembly of Governors, I have the bittersweet task of announcing the retirement of Brian Horsfield, who has ably served as the Chair of ICDP’s Executive Committee for the past six years. During Brian’s...

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SAG Meeting in Bern

Group Photo Further evaluation at the Executive Committee meeting in June 5-6.

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East Africa

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Drilling successfully completed with 225 m of drilled core

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India renewed membership

MoU between University of Earth Sciences, India and GFZ Potsdam signed on August 30.

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20 Years of ICDP

The Union Symposium Speakers

Deep Geofluids: the bringers of change

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Inauguration of the ICDP-GONAF downhole observatory

More than 40 Scientists from seven countries came together for the inauguration of the ICDP GONAF downhole observatory (Geophysical Observatory at the North Anatolian Fault). The workshop was held in combination with the...

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Heat and Mass Transport

Volcanism, Tectonics, and Heat Flow in the Wake of the Yellowstone Mantle Plume

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East Africa

Fine sediment lamination in Lake Challa (East Africa), dating from three time periods during the last two glacial-interglacial cycles. Left: open core surface, CHALLACEA core sequence recovered in March 2005. Centre and right: view through core liner, DeepCHALLA core sequence recovered in November 2016.

... 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.

Picture Caption: Fine sediment lamination in Lake Challa (East Africa), dating from three time periods during the last two glacial-interglacial cycles. Left:open core surface, CHALLACEA sequence recovered in March 2005; centre and right: view through coreliner, DeepCHALLA sequence recovered in November 2016.

DeepChalla Project Page >>