Dari hasil analisa dengan model 3D maupun secara langsung di lapangan, diketahui jika singkapan di Brown Canyon tersusun atas litologi berupa batupasir, konglomerat, dan tuffaan sebagai bagian dari formasi Damar dengan umur pengendapan Plio-Pleistocene. Sesuai dengan pengamatan singkapan yang telah dilakukan, secara stratigrafi diketahui jika singkapan di Brown Canyon terbentuk pada endapan channel bar dengan lingkungan pengendapan terestrial.
Brown Canyon is a mining area that has a massive outcrop that can be analyzed its geological condition. Based on the result analyzed by using the 3D model observation along with the direct observation on site, the lithology of the outcrop is determined as sandstones alongside with conglomerates and tuff. It is interpreted that the lithology that has been found on the site is part of Damar Formation as a Plio-Pleistocene deposits. As observed, the outcrop in Brown Canyon is a form of a channel bar deposits of a terrestrial sediment deposits
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