Measurement of geothermal flux through poorly consolidated sediments

J.H. Sass; R. J. Munroe; A.H. Lachenbruch

doi:10.1016/0012-821x(68)90090-3

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Measurement of geothermal flux through poorly consolidated sediments

J.H. Sass·R. J. Munroe·A.H. Lachenbruch

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Abstract

In many regions, crystalline rocks are covered by hundreds of meters of unconsolidated and poorly consolidated sediments. Estimates of heat flux within these sediments using standard continental techniques (temperature and conductivity measurements at intervals of 10 to 30 meters) are unreliable, mainly because of the difficulty in obtaining and preserving representative lengths of core. However, it is sometimes feasible to use what amounts to an oceanographic technique by making closely spaced temperature and conductivity measurements within short cored intervals. This is demonstrated in a borehole at Menlo Park, California (37°27′N, 122°10′W, elevation 16 meters), where heat flows determined over 12 separate 1-meter intervls al lie within 10% of their mean value; 2.2 μcal/cm 2 sec.

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Earth and Planetary Science Letters Article

Source-reported bounding extent: 36.491973470593685° to 38.496593518947584° latitude; -123.3984375° to -119.92675781249999° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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J.H. Sass, R. J. Munroe, A.H. Lachenbruch. 1968. Measurement of geothermal flux through poorly consolidated sediments. https://doi.org/10.1016/0012-821x(68)90090-3

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