Hydrothermal mineral alterations in the Brady and Desert Peak geothermal fields
Results of the analysis of HyMap's spectra against know hydrothermally altered minerals in the Brady-Desert Peak Geothermal Areas. The analysis was performed using ENVI's Target Detection process against USGS library spectra for Chalcedony, Kaolinite, Gypsum, Hematite and Epsomite.
Each compressed file includes three raster images created after fusing the target detection results for all minerals:
_fusion_all - Contains the 8 layers resulting from target detection and fusion of the 5 minerals
_fusion_all_normal - Contains each layer as above, after Winsorization (99% percentile on the positive side only due to skewness of results), and normalization of each layer to achieve a range between [0-1]
_fusion_final - Contains a fused raster by sub-setting the normalized layers, with the results of MTMF, MTTCIMF, OSP and SAM. Both CEM and MF were discarded as being less accurate than MTMF, and TCIMF is less accurate than MTTCIMF, ACE results were discarded because they were notably different from the rest of the analyses.
The base_names are:
brady - Brady geothermal area only
desert - Desert Peak geothermal area only
hymap - Full image analysis comprising both the Brady and Desert Peak geothermal areas
Citation Formats
TY - DATA
AB - Results of the analysis of HyMap's spectra against know hydrothermally altered minerals in the Brady-Desert Peak Geothermal Areas. The analysis was performed using ENVI's Target Detection process against USGS library spectra for Chalcedony, Kaolinite, Gypsum, Hematite and Epsomite.
Each compressed file includes three raster images created after fusing the target detection results for all minerals:
_fusion_all - Contains the 8 layers resulting from target detection and fusion of the 5 minerals
_fusion_all_normal - Contains each layer as above, after Winsorization (99% percentile on the positive side only due to skewness of results), and normalization of each layer to achieve a range between [0-1]
_fusion_final - Contains a fused raster by sub-setting the normalized layers, with the results of MTMF, MTTCIMF, OSP and SAM. Both CEM and MF were discarded as being less accurate than MTMF, and TCIMF is less accurate than MTTCIMF, ACE results were discarded because they were notably different from the rest of the analyses.
The base_names are:
brady - Brady geothermal area only
desert - Desert Peak geothermal area only
hymap - Full image analysis comprising both the Brady and Desert Peak geothermal areas
AU - Moraga, Jim
DB - Geothermal Data Repository
DP - Open EI | National Renewable Energy Laboratory
DO - 10.15121/1824162
KW - geothermal
KW - energy
KW - hydrothermal mineral alterations
KW - mineral markers
KW - HyMap
KW - Brady
KW - Desert Peak
KW - data fusion
KW - geospatial data
KW - mineral alterations
KW - spectral analysis
KW - target detection
KW - remote sensing
KW - data
KW - processed data
KW - geothermal area
KW - Nevada
LA - English
DA - 2021/10/01
PY - 2021
PB - Colorado School of Mines
T1 - Hydrothermal mineral alterations in the Brady and Desert Peak geothermal fields
UR - https://doi.org/10.15121/1824162
ER -
Moraga, Jim. Hydrothermal mineral alterations in the Brady and Desert Peak geothermal fields. Colorado School of Mines, 1 October, 2021, Geothermal Data Repository. https://doi.org/10.15121/1824162.
Moraga, J. (2021). Hydrothermal mineral alterations in the Brady and Desert Peak geothermal fields. [Data set]. Geothermal Data Repository. Colorado School of Mines. https://doi.org/10.15121/1824162
Moraga, Jim. Hydrothermal mineral alterations in the Brady and Desert Peak geothermal fields. Colorado School of Mines, October, 1, 2021. Distributed by Geothermal Data Repository. https://doi.org/10.15121/1824162
@misc{GDR_Dataset_1334,
title = {Hydrothermal mineral alterations in the Brady and Desert Peak geothermal fields},
author = {Moraga, Jim},
abstractNote = {Results of the analysis of HyMap's spectra against know hydrothermally altered minerals in the Brady-Desert Peak Geothermal Areas. The analysis was performed using ENVI's Target Detection process against USGS library spectra for Chalcedony, Kaolinite, Gypsum, Hematite and Epsomite.
Each compressed file includes three raster images created after fusing the target detection results for all minerals:
_fusion_all - Contains the 8 layers resulting from target detection and fusion of the 5 minerals
_fusion_all_normal - Contains each layer as above, after Winsorization (99% percentile on the positive side only due to skewness of results), and normalization of each layer to achieve a range between [0-1]
_fusion_final - Contains a fused raster by sub-setting the normalized layers, with the results of MTMF, MTTCIMF, OSP and SAM. Both CEM and MF were discarded as being less accurate than MTMF, and TCIMF is less accurate than MTTCIMF, ACE results were discarded because they were notably different from the rest of the analyses.
The base_names are:
brady - Brady geothermal area only
desert - Desert Peak geothermal area only
hymap - Full image analysis comprising both the Brady and Desert Peak geothermal areas
},
url = {https://gdr.openei.org/submissions/1334},
year = {2021},
howpublished = {Geothermal Data Repository, Colorado School of Mines, https://doi.org/10.15121/1824162},
note = {Accessed: 2025-04-24},
doi = {10.15121/1824162}
}
https://dx.doi.org/10.15121/1824162
Details
Data from Oct 1, 2021
Last updated Oct 6, 2021
Submitted Oct 2, 2021
Organization
Colorado School of Mines
Contact
Jim Moraga
303.273.3768
Authors
Keywords
geothermal, energy, hydrothermal mineral alterations, mineral markers, HyMap, Brady, Desert Peak, data fusion, geospatial data, mineral alterations, spectral analysis, target detection, remote sensing, data, processed data, geothermal area, NevadaDOE Project Details
Project Name Detection of Potential Geothermal Exploration Sites from Hyperspectral Images via Deep Learning
Project Lead Mike Weathers
Project Number EE0008760
