KARAKTERISTIK ENDAPAN SINTER TRAVERTIN PANAS BUMI BARASANGA KABUPATEN KONAWE UTARA, SULAWESI TENGGARA
DOI:
https://doi.org/10.20956/geocelebes.v2i2.4830Abstract
Daerah Barasanga menunjukkan manifestasi panasbumi berupa mataair panas dan endapan travertin. Travertin merupakan batuan karbonat yang terbentuk di darat akibat pelepasan CO2 dari air jenuh kalsium karbonat. Travertin memiliki banyak aplikasi namun di Indonesia belum banyak dipelajari. Penelitian ini dilakukan dengan cara observasi lapangan secara langsung, kemudian data yang telah diambil dari lapangan dianalisis menggunakan analisis petrografi. Air hidrothermal naik ke permukaan melalui rekahan yang dibentuk sesar, dan melewati batuan samping berupa marls dan batugamping tersebut. Ketika mencapai ke permukaan, CO2 lepas dan tingkat kelarutan semakin rendah sehingga pengendapan travertin terjadi. Hasil penelitian menunjukkan bahwa tipe dan jenis travertin pada mataair panas di daerah penelitian termasuk ke dalam jenis Incoherent Travertines.
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