Sukamoro area, Banyuasin Regency, South Sumatera, was the research location. This investigation focuses on the origin of sandstones from the Talang Akar Formation. In the area of investigation, sandstones are widely dispersed and exhibit a variety of properties. Due to the abundance of sandstones found and their high resistance and physical compactness, an analysis of the original rock can be carried out. Generally, the material that makes up sandstone comes from the previous rock. This investigation was undertaken using a descriptive-analytical methodology to determine the origin of the rock. The collected surface data is subsequently petrographically examined. After determining the composition of the constituent minerals, a provenance analysis was conducted to determine that the Talang Akar Formation's sandstones originated from the Magmatic Arc. Furthermore, the Talang Akar sandstone reveals the origin of the Recycle Orogen. Thus, it is considered that the sandstones of the Talang Akar Formation have seen many uplift episodes as a result of tectonic activity, almost to the point where they have experienced an increase in the maturity or stability of their continental block provenances
SARI Daerah Sukomoro merupakan daerah yang termasuk ke dalam Formasi Palembang Tengah pada Cekungan Sumatera Selatan. Formasi ini dikenal dengan batuan yang terbentuk pada proses pasang-surut air laut. Bukti terjadinya pasang-surut air laut dapat dijumpai oleh kehadiran batugamping yang menjadi indikasi lingkungan pengendapan daerah neritik (laut dangkal) serta dijumpai amber (getah pohon) dengan jarak relatif dekat (± 1km). Berdasarkan analisa paleontologi, tidak dijumpai hadirnya fosil foraminifera pada sampel batugamping. Hal ini semakin menguatkan indikasi lingkungan pengendapan transisi pada daerah penelitian. Berdasarkan hasil analisa fosil pollen dijumpai indikasi kehadiran tumbuhan yang bervariasi mulai dari kelompok gymnospermae (tumbuhan berbiji terbuka hadir pada lingkungan darat), angiospermae (tumbuhan berbiji tertutup hadir pada lingkungan darat) dan pteridopytha (tumbuhan paku-pakuan hadir pada lingkungan darat yang berair) hingga mangrove (tumbuhan penciri daerah rawa). Dengan kehadiran variasi fosil-fosil tersebut, maka diinterpretasikan bahwa lingkungan pengendapannya adalah transisi terutama pada lingkungan intertidal (Henrich, 2007 dalam Mayasari, 2016). Lingkungan pengendapan ini dicirikan oleh morfologi dengan kemiringan lereng yang landai.
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