GADJAH MADA GEOPHYSICS 

PALEOMAGNET & GEODYNAMICS GROUP

RESEARCH OBJECTIVES

We are interested in paleomagnetic and geodinamic. 

PEOPLE

This Group led by Mr. Drs. Achmad Mahfi, MA. The members are students who interested to Paleomagnet & Geodynamics.

RESEARCH LINKAGES

Research Project with Geological Research and Development Center (GRDC) in Bandung on Geodynamics on Irian Jaya in connection with the outstanding Integrated Research (RUT I).

RESEARCH

A PALEOMAGNETIC STUDY OF THE SALOKALUPANG FORMATION, 

SOUTHERN ARM OF SULAWESI

By

Masjaya Maskar

A palemagnetic study has been carried out of Salokalupang Formation in Southern Arm of Sulawesi. The aims of this study are determine paleomagnetic direction, paleomagnetic pole to understand the rotation and paleolatitude of rock the area in the Middle Miocene.

A total of 160 oriented rock samples have been used for this study. Primary magnetization of the sample are measured by using digital spinner magnetometer (Model DSM-2) and the secondary magnetization are cleaned using AF (Alternating Field) demagnetizer (model GSD-1). Data processing and analyzing using IAPD (interactive Analysis of Paleomagnetic Data) software and Fisher Statistic producing are result of paleomagnetic direction Dm = -27.1 degrees, Im =-5.5 degrees, alpha95=11.1 degrees, N=6, R=5.9 and K = 37.1. The palemagnetic pole was situated at 32.9 degrees E, 62.8 degrees N with delta (p)=5.6 degrees and delta (m)=11.1 degrees, paleolatitude was situated at 2.8 degrees S. from Salo Kalupang. results from the Salo Deko are remagnetism before folding (prefolding).

Combined paleomagnetic studies from the Southern Arm of Sulawesi are used reconstructing position of the Arm movement and APWP (Apparent Polar Wander Paths) in the Tertiary.