POLYMICT BRECCIAS OF YEFMAN

Location

Yefman Island – Batanta

Coordinate

00o56,341’S and 131o04,148’E

Characteristics

Rock association, regional tectonics (active

fault), geological process and history

VALUE :

FUNCTION :

☑ NATIONAL

☑ SCIENTIFIC

☑ EDUCATIONAL

RA-19


Geology

Yefman polymict breccias at Salawati area

Massive breccias of various components at coordinates 0056,341’S and 131004,148’E are compact, hard, gray to pink in color, and medium to coarse grained. Sub angular to angular components compose of pink granites, aplites, limestones, slates, schists, quartzites, sandstones, and serpentinites. The presence of rocks is related to the Sorong Fault.

Breksi aneka bahan yang kompak, keras, berwarna kelabu hingga merah muda, mempunyai komponen berukuran sedang hingga kasar. Komponen yang menyudut tanggung hingga menyudut itu berupa granit merah muda, aplit, batu gamping, batu sabak, sekis, kuarsit, batu pasir, dan serpentinit. Mula jadi batuan ini berkaitan dengan Sesar Sorong.

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