HEAT-FLOW DATA FROM THE WESTERN MARGIN OF THE WEST AFRICAN CRATON (MAURITANIA)

被引：10

作者：

LESQUER, A

VILLENEUVE, JC

BRONNER, G

机构：

[1] ORSTOM,INST FRANCAIS RECH SCI DEV COOPERAT,DAKAR,SENEGAMBIA

[2] FAC SCI & TECH ST JEROME,GEOPHYS & GEODYNAM LAB,F-13397 MARSEILLE 13,FRANCE

来源：

PHYSICS OF THE EARTH AND PLANETARY INTERIORS | 1991年 / 66卷 / 3-4期

关键词：

D O I：

10.1016/0031-9201(91)90087-X

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Eighteen new heat flow determinations in shallow boreholes (100-230 m) at three sites in West Africa (Mauritania) are presented. The first site is located in the Archaean province (Reguibat shield) of the West African craton. Temperature measurements were performed in iron formation and needed correction for refraction. The average value is 50 mW m-2 and radioactive element distribution in surface rocks provides an upper crust heat contribution of 1.8-mu-W m-3. The second site, located near the craton margin, and the third site, located in the Senegal coastal basin, display a slightly higher value of 59 mW m-2.

引用

页码：320 / 329

页数：10

共 21 条

[1] TERRESTRIAL HEAT-FLOW IN BOTSWANA AND NAMIBIA [J].