Introduction to The Earth Field In Bukit Batu Putih, Samarinda City, East Kalimantan

Abstract

This Introduction to Earth Science Field Lecture activity was
conducted at Bukit Batu Putih, Samarinda City, which is the Balang
Island Formation (Tmpb). This location was chosen because of the
dominance of limestone in the area and the significant limestone
mining activities. This study aims to understand the local geological
characteristics, identify limestone types, and analyze the impact of
mining on the surrounding environment. The methodology used in
this study includes field observation, geological mapping, and visual
analysis and limestone sample assessment. Field observations were
conducted to identify the structure and texture of limestone and
geological formations around the location. Geological mapping was
conducted to map the distribution of limestone and understand the
stratigraphic relationship between rock layers. The results of the
study indicate that limestone consists of clastic and fossiliferous
limestone types, which are formed from calcium carbonate deposits.
Mining activities in this area have revealed many limestone layers
that have economic potential. However, mining also has
environmental impacts, such as changes in land morphology and
degradation of water quality. The conclusion of this study
emphasizes the importance of understanding regional geology and
limestone characteristics for better resource management.
Recommendations are provided for improving environmentally
friendly mining practices and conservation efforts to maintain the
balance of the ecosystem in Bukit Batu Putih.