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The AAPG/Datapages Combined Publications Database

AAPG Bulletin

Abstract


Volume: 69 (1985)

Issue: 4. (April)

First Page: 622

Last Page: 626

Title: Compaction Curves

Author(s): Brewster Baldwin (2), Crispin O. Butler (3)

Abstract:

Compaction, especially for shales, is readily estimated. Normal shale, and perhaps limestone, has a solidity (S; the complement of porosity) within 5% of the Baldwin-Butler power-law equation,

burial depth (in km) = 6.02 S6.35.

Shales at least 200-m (660-ft) thick should fit the Dickinson curve, or our "Dickinson equation,"

burial depth (in km) = 15 S8.

For sandstones, the Sclater-Christie exponential curve seems satisfactory. Its logarithmic equivalent is,

burial depth (in km) = 3.7 ^scrln[0.49/(1 - S)].

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