PALAEOMAGNETIC DATA FROM THE PRECAMBRIAN GWALIOR TRAPS, CENTRAL INDIA *

Abstract

Klootwijk, C.T., 1974. Palaeomagnetic data from the Precambrian Gwalior Traps, Central India. Tectonophysics, 21: 181-195. From alternating-field and thermal demagnetization studies on two dolerite “Traps” in the Gwalior Series (Central India), dated at 1830 f200 m.y., three different palaeomagnetic directions could be distinguished. The characteristic magnetization component, which is considered as the primary magnetization, has a mean direction: D=78’, Z=+34.5”, a95=5O, k=369, N=4 (Pole: 155.5’E1g0N, dp=3’, dm=5.5’). A comparison of the presented data with other Precambrian and Phanerozoic data from the Indian subcontinent might suggest that the Indian subcontinent underwent a continuous anticlockwise rotational movement during the last 1800 m.y.