A GEOPHYSICAL INTERPRETATION OF THE DATA ON THE NEWEST AND RECENT PLUTONIC TECTONIC MOVEMENTS,
Abstract
Data relating to the phenomena of the recent and newest tectonic movements on the upper surface of the earth's crust can be used to explain the important features of the subsurface geological and geophysical processes which at the present time are developing within the earth's crust and in the upper portion of the subcrustal mantle (in the upper mantle). The vertical velocity component of tectonic movements gives a basis for objectively relating the recent and newest movements of each region to one of the genetic types when one compares the sign of this component with data from subsurface seismic soundings and with the sign of the true isostatic gravity anomaly. The movements directed towards an isostatically equilibrated position of the earth's crust are principally different in origin from the movements by which the earth's crust is removed from an isostatically equilibrated position. Further separation and explanation of the movements would be hypothetical at the present time. A comparison of the values of the vertical and horizontal velocity components of the recent and newest movements will make it possible to make a selection more valid than the present one between the two main current hypotheses about the physical nature of the subsurface processes occuring within the earth's crust and in the subcrustal mantle.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1964
- Accession Number
- AD0611123
Entities
People
- M. V. Gzovskii
Organizations
- Emmanuel College