Melakukan Penanganan Core - Geologi Pertambangan

Summary

This educational video guides vocational school students through the process of core drilling and sample handling in geological exploration. It covers core sampling techniques, including the use of various coring tools and the importance of careful sample handling for laboratory analysis. Key aspects such as the proper identification, documentation, and packaging of samples are emphasized, ensuring accurate data collection and minimal contamination. The video also discusses the essential role of core logging in obtaining reliable geological information, which is crucial for mining and exploration projects.

Takeaways

• 😀 Core drilling is essential for geological exploration, especially during the general and detailed exploration phases.
• 😀 Core samples are valuable for determining the quantity and quality of mineral resources.
• 😀 The process of core drilling is expensive and time-consuming but provides significant geological data.
• 😀 Bioriset Indonesia in Yogyakarta is a practical learning site where students can learn about core sampling and drilling procedures.
• 😀 The core drilling method uses a power rig machine, capable of drilling up to 70 meters, making it ideal for preliminary exploration in various terrains.
• 😀 Proper core sample handling includes using specialized methods like aluminum foil and plastic wrap to preserve sample integrity for further analysis.
• 😀 Core samples are documented and analyzed based on various factors such as depth, rock type, structure, and mechanical properties.
• 😀 Core recovery percentage is crucial and should ideally be above 90% for accurate data collection.
• 😀 Core samples should be preserved carefully to avoid contamination or degradation, particularly when intended for lab analysis.
• 😀 Proper labeling and storage of core samples in boxes are critical to ensure accurate tracking and analysis throughout the exploration process.
• 😀 Effective exploration and evaluation of mineral resources depend on accurate core sample handling, documentation, and preservation techniques.

Q & A

What is the main purpose of core drilling (coring)?

Core drilling, or coring, is primarily used to obtain representative samples for geological analysis, determining the quality and quantity of mineral resources, and conducting various tests such as geotechnical assessments and coal analysis.

Why is core drilling considered a costly and time-consuming process?

Core drilling is expensive and time-consuming due to the specialized equipment required, the complexity of the drilling process, and the careful handling and analysis of the samples that are collected.

Where is the Bioriset Indonesia research facility located?

The Bioriset Indonesia research facility is located in Ngalang Village, Gedangsari Subdistrict, Gunungkidul Regency, in the Special Region of Yogyakarta, Indonesia.

What is the primary drilling machine used in the video for exploration activities?

The video demonstrates the use of a power rig drilling machine, modified with a Sang Word, which has a maximum capacity of drilling up to 70 meters and is highly efficient for exploration, especially in challenging terrains.

What is the significance of core sample handling?

Core sample handling is critical to preserving the integrity of the sample for further analysis. It involves various methods such as using plastic bags or aluminum foil to protect the sample, especially when laboratory analysis or specific tests like carbon dating are required.

What types of coring tools are mentioned, and what is their role?

The video mentions coring tools such as single, double, and triple corbel tubes, which are used to collect core samples from drilling. These tubes are inserted into the borehole to capture and store the core samples.

How is the core sample described and handled once extracted?

Once extracted, the core sample is placed on a core table in a shaded area with adequate lighting for proper inspection. The sample is then measured, documented with details such as depth, and carefully labeled for further analysis.

What should be done if the core sample needs to be sent to a laboratory for analysis?

If the sample is to be sent for laboratory analysis, it should be carefully wrapped with plastic wrap and aluminum foil, labeled with information such as the top and bottom of the sample, and placed in a protective container, such as PVC pipes, to prevent damage during transportation.

What is the recommended method for calculating core recovery (core recovery percentage)?

Core recovery percentage is calculated by determining the length of the core obtained compared to the total length of the borehole drilled. A good core recovery is typically above 90% to ensure accurate geological data.

Why is proper core sample documentation and handling important in drilling operations?

Proper documentation and handling of core samples are essential to ensure that the samples are accurately identified, analyzed, and preserved. This enables reliable data for further geological studies and resource evaluations, which are crucial for mining and exploration projects.