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- Volume 3, Issue 6, 1985
First Break - Volume 3, Issue 6, 1985
Volume 3, Issue 6, 1985
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Oil and coal: reserves and production
More LessThe 1984-85 strike by British coal miners has focused attention on the difficulties of the coal industry at a time when demand for energy is slack and oil prices are falling. The coal industry does not look very glamorous. Do we really need the coal? In this article it is argued that in the foreseeable future we will become increasingly dependent on coal.
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A microcomputer program for Tsuboi's method of gravimetic interpretation
Authors C. Thanassoulas and G.N. TsokasNowadays gravimetric data are extensively interpreted by approximating the subsurface situation with simple polygonal structures. Algorithms to calculate the effect of such structures have been presented for bodies striking at right angles to profiles under interpretation and having effectively infinite strike lengths, (Talwani, Worzei and Landisman 1959). Such methods have been termed 2-D. A slight modification of the method was used to interpret three-dimensional bodies (Talwani and Ewing 1960). Methods have also been proposed in order to overcome the disadvantage of the infinite strike length in 2-D interpretation. Such techniques, supposing finite strike lengths, are termed 2 1/2-D interpretational methods (Cady 1980). The microcomputer program presented in this work is based on the method proposed by Tsuboi, Tomoda and Aki (Tomoda and Aki 1955; Tsuboi 1983). It is a 2-D method for determining directly from gravity data the depth to a single density interface. It consists of calculating the deviation of the interface from mean depth by means of excess mass under each point on a profile where the gravity anomaly has been measured.
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Volumes & issues
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Volume 42 (2024)
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Volume 41 (2023)
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Volume 40 (2022)
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Volume 39 (2021)
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Volume 38 (2020)
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Volume 37 (2019)
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Volume 36 (2018)
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Volume 35 (2017)
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Volume 34 (2016)
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Volume 33 (2015)
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Volume 32 (2014)
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Volume 31 (2013)
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Volume 30 (2012)
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Volume 29 (2011)
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Volume 28 (2010)
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Volume 27 (2009)
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Volume 26 (2008)
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Volume 25 (2007)
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Volume 24 (2006)
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Volume 23 (2005)
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Volume 22 (2004)
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Volume 21 (2003)
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Volume 20 (2002)
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Volume 19 (2001)
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Volume 18 (2000)
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Volume 17 (1999)
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Volume 16 (1998)
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Volume 15 (1997)
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Volume 14 (1996)
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Volume 13 (1995)
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Volume 12 (1994)
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Volume 11 (1993)
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Volume 10 (1992)
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Volume 9 (1991)
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Volume 8 (1990)
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Volume 7 (1989)
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Volume 6 (1988)
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Volume 5 (1987)
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Volume 4 (1986)
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Volume 3 (1985)
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Volume 2 (1984)
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Volume 1 (1983)