Abstract

Application of CSAMT Method for Gold-copper Deposits, Chinkuashih Area, Northern Taiwan

Highlights

  • The Chinkuashih district in northern Taiwan produced 92 tons of gold, 119101 tons of copper, and 183 tons of silver from about 20 million tons of ore from 1898 to 1987

  • Structural geology was investigated by Huang (1963) and Yen et al (1979), and ore deposits were described by Huang (1955, 1960)

  • An intrusive structure which is outlined by the Wutanshan, Penshan, Tsaoshan, and Chimuling dacites has been interpreted by gravity data (Tzou,1979 ) which suggest possible concealed gold deposits

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Summary

INTRODUCTION

The Chinkuashih district in northern Taiwan produced 92 tons of gold, 119101 tons of copper, and 183 tons of silver from about 20 million tons of ore from 1898 to 1987. Ore bodies are associated spatially and genetically with the Penshan, Chiufen, and Wutanshan dacites of Pleistocene age (Figure 1 ). An intrusive structure which is outlined by the Wutanshan, Penshan, Tsaoshan, and Chimuling dacites has been interpreted by gravity data (Tzou,1979 ) which suggest possible concealed gold deposits. It is for this purpose the present study has bene made. The gold-copper deposits are associated spatially and genetically with the Penshan, Chiufen, and Wutanshan dacites of Pleistocene age, Chinkuashih district, northern Taiwan. CSAMT sounding data, an intrusive beneath the survey area was confirmed, which indicates possible concealed gold deposits in the margin of this circular structure

PRINCIPLE OF THE CSAMT METHOD
DATA ACQUISITION AND PROCESSING
RESULTS
Frequency Slices
Profile B
Profile C
Depth Slices
CONCLUSIONS
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