| hasData_Center_Short_Name |
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| hasDataset_Online_Resource |
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| hasProject_Long_Name |
- International Continental Scientific Drilling Program
- Hawaii Scientific Drilling Project
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| hasDataset_Release_Date |
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| hasDataset_Title |
- Magnetic field downlog 19990704 for HSDP-2-A
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| hasEntry_ID |
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| hasKeyword |
- borehole_deviation_X_comp
- borehole_deviation_Y_comp
- borehole_deviation_total_calc
- magnetic_X_component
- magnetic_Y_component
- magnetic_Z_component
- magnetic_horizontal_field_calc
- magnetic_inclination_calc
- magnetic_total_field_calc
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| hasSummary |
-
A quasi-continuous magnetic log has been obtained in the Hawaii Scientific Drilling Project 2 (HSDP-2) between 600 m and 1800 m, which corresponds to a time interval of approximately 350 ka to 480 ka. A tri-axial borehole magnetometer was employed to measure the horizontal and vertical magnetic fields. Measurements were taken in downhole and uphole runs, with a good correlation between the two. In a first step the logs were corrected for the transfer function of the employed low-pass filter and then for the logging depths. To calculate rock magnetizations from magnetic components, we used a multidisk cylindrical model for the penetrated rocks. The disk thickness corresponds with 0.1 m to the logging sampling rate. Magnetic borehole logging in the HSDP-2 hole has established the following: Massive lava flows can be distinguished from those with prevailing hyaloclastites and enables us to supplement the lithology, especially in depth intervals with poor core recovery.
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| GCMD Sciencekeywords describing the dataset. Click on Keyword to find similar datasets | |
