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... drop a pfennig down the KTB hole, it would take several minutes to hit bottom, for this research drill hole has now penetrated to 7.5 kilometers. It is the second deepest man-made hole, after the Soviet 12-km hole in the Kola Peninsula. Drilled solely for scientific purposes, the rocks and strata encountered by the KTB drill bits have forced the redrawing of German geological maps. The "real" subterranean world turned out to be quite different from that inferred from both surface indications and the seismic ... electrical probing of the depths. Three specific surprises are worth mentioning: Temperatures in the drill hole rose far faster than predicted. The expected boundary (" suture") between two old tectonic plates thought to exist at 3 km according to surface geology had not yet appeared at 7.5 km. Most interestingly, crevicular structure (crevices and pores) existed at almost all depths, even though theory said they could not because of intense pressures. And these voids were filled with fluids. P. Keher, a KTB scientist ... Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Ktb Hole KTB = Kontinentales Tiefbohrprogramm der Bundesrepublik Deutschland If you could drop a pfennig down the KTB hole, it would take several minutes to hit bottom, for this research drill hole has now penetrated to 7.5 kilometers. It is the second deepest man-made hole, after the Soviet 12-km hole in the Kola Peninsula. Drilled solely for scientific purposes, the rocks and strata encountered by the KTB drill bits have ...
Terms matched: 4 - Score: 1511 - 15 May 2017 - URL: /sf090/sf090g08.htm
... . Skeptics say they are derived from the drilling fluids. Tons of micrometer-sized grains of magnetite were taken out of the hole. Gold opines that these grains were synthesized by bacteria subsisting upon seeping methane at a depth of 6 kilometers. Russian drillers on the Kola Peninsula report the existence of intriguing circulating fluids as far down as 12 kilometers. Despite the problems and disappointments at the first hole, some Swedish investors seem ready to finance a second hole at the Siljan Ring. (Kerr, Richard A.; "When ... Radical Experiment Goes Bust," Science, 247:1177, 1990.) Reference. To read more on primordial methane and the Siljan Ring, refer to ESC16 in our catalog: Anomalies in Geo logy. Ordering information here . From Science Frontiers #69, MAY-JUN 1990 . 1990-2000 William R. Corliss ...
Terms matched: 4 - Score: 1173 - 15 May 2017 - URL: /sf069/sf069g09.htm
... there is always the possibility that the methane seeping out of the earth is abiogenic. See BLACK GOLD -- AGAIN under Geology . (3 ) How deeply into the crust has life penetrated? The Soviets reported bacteria at 12 kilometers in their drill hole on the Kola Peninsula. From Science Frontiers #79, JAN-FEB 1992 . 1992-2000 William R. Corliss ...
Terms matched: 4 - Score: 1040 - 15 May 2017 - URL: /sf079/sf079g09.htm