Detection of alteration zones using the Dirichlet process stick breaking model-based clustering algorithm to Hyperion data: The case study of Kuh-Panj porphyry copper deposits, southern Iran

2022 ◽  
pp. 1-27
Author(s):  
Mastoureh Yousefi ◽  
Seyed Hassan Tabatabaei ◽  
Reyhaneh Rikhtehgaran ◽  
Amin Beiranvand Pour ◽  
Biswajeet Pradhan
Keyword(s):  
Dirichlet Process ◽  
Clustering Algorithm ◽  
Porphyry Copper ◽  
Porphyry Copper Deposits ◽  
Copper Deposits ◽  
Alteration Zones ◽  
Model Based Clustering ◽  
Southern Iran ◽  
Hyperion Data

Porphyry Copper Discovery Beneath the Valeriano Lithocap, Chile

SEG Discovery ◽  
2016 ◽  
pp. 1-20
Author(s):  
Richard H. Sillitoe ◽  
Claudio Burgoa ◽  
David R. Hopper
Keyword(s):  
Gold Mineralization ◽  
Porphyry Copper ◽  
Northern Chile ◽  
Porphyry Copper Deposits ◽  
Copper Deposits ◽  
Alteration Zones ◽  
Copper Gold ◽  
Drill Holes

ABSTRACT Exploration for porphyry copper deposits beneath barren or poorly mineralized, advanced argillic lithocaps is becoming common­place; however, there have been few discoveries except in cases where the copper ± gold ± molybdenum mineralization has been partly exposed, typically as a result of partial lithocap erosion. At Valeriano, in the high Andes of northern Chile, completely concealed Miocene porphyry copper-gold mineralization was recently discovered beneath a lithocap. Here, the results of the staged drilling program that led to the discovery are summarized, with emphasis on the key geologic, alteration, and mineralization features that provided guidance. The final deep drill holes of the 16-hole program cut well-defined advanced argillic and sericitic alteration zones before entering chalcopyrite ± bornite–bearing, potassic-altered porphyry, with grades of 0.7 to 1.2% Cu equiv, at depths of ~1,000 to >1,800 m.

MAPPING PORPHYRY COPPER DEPOSITS IN THE PHILIPPINES WITH IP

Geophysics ◽  
1976 ◽  
Vol 41 (1) ◽  
pp. 106-122 ◽  
Author(s):  
William H. Pelton ◽  
Peter K. Smith
Keyword(s):  
Structural Control ◽  
Electrical Response ◽  
Porphyry Copper ◽  
Geographical Area ◽  
Structural Features ◽  
The Philippines ◽  
Induced Polarization ◽  
Porphyry Copper Deposits ◽  
Copper Deposits ◽  
Alteration Zones

The induced polarization (IP) method has played a very important role in the recent discovery of several new Philippine porphyry copper deposits. It was found, however, that the electrical response measured over different deposits can be extremely variable, even in a limited geographical area. Four main classes of response have been recognized; these appear to arise primarily from different structural control and possibly from differing levels of erosion in the Lowell and Guilbert (1970) and Hollister et al. (1974) porphyry copper models. Since the distribution of economic mineralization is highly dependent upon erosional level and structural control. It is important in IP interpretation to (1) recognize the type of deposit (2) determine the position of controlling structural features, and (3) map the existing alteration zones, before attempting to define the location of economic mineralization.

Sign in / Sign up

Export Citation Format

Share Document