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| ???org.dspace.app.webui.jsptag.ItemTag.dcfield??? | Value | Language |
|---|---|---|
| dc.contributor.advisor | 宋聖榮(Sheng-Rong Song) | |
| dc.contributor.author | Juan Ricardo Diaz Muñoz | en |
| dc.contributor.author | 狄懷安 | zh_TW |
| dc.date.accessioned | 2021-06-17T03:23:41Z | - |
| dc.date.available | 2020-08-24 | |
| dc.date.copyright | 2020-08-24 | |
| dc.date.issued | 2020 | |
| dc.date.submitted | 2020-08-19 | |
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GPS velocities and the construction of the Eastern Cor-dillera of the Colombian Andes. Geophysical Research Letters, 43(16), 8407-8416. Moreno, N., Silva, A., Mora, A., Tesón, E., Quintero, I., Rojas, L. E., ... Osorio, L. (2013). In-teraction between thin-and thick-skinned tectonics in the foothill areas of an inverted graben. The Middle Magdalena Foothill belt. Geological Society, London, Special Publications, 377(1), 221-255. Narr, W., Suppe, J. (1991). Joint spacing in sedimentary rocks. Journal of Structural Geolo-gy, 13(9), 1037-1048. Nemcok, M., Schamel, S., Gayer, R. (2009). Thrustbelts: Structural architecture, thermal re-gimes and petroleum systems. Cambridge University Press Niño, G. (2017). Geological and Geochemical Analyses for Emerald Exploration in the Muzo Formation along the Western Emerald belt, Colombia. Parra, M., Mora, A., Sobel, E. R., Strecker, M. R., González, R. (2009). 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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/69683 | - |
| dc.description.abstract | The Colombian emeralds are well-known green gems, because of their unique characteristics, quality of color and sizes. Colombian Emeralds, located in the Eastern Cordillera, have under-ground mining in various locations. Separated by approximately 130Km is located the Eastern Emerald Belt (EEB) and the Western Emerald Belts (WEB), in a general context they share chemical and tectonic similarities, but, with a complex tectonic evolution.
The geology of emerald and tectonic configuration is composed of disharmonic structures series, e.g., thrusted and folded areas. Current and past mining in these deposits created mines, more than a few tens in WEB, distributed in three districts, Muzo, Cunas, and Coscuez. Based on field surveys into those mines, we observed paths that suggest the location of mines in slumps or landslide areas (slope deformation), which are characterized by matrix-supported structures. Block sizes vary from centimeters to hundreds of meters. Types of blocks include black shale, mudstones, limestones, calcite-rich veins with emeralds, stratiform-pyrite, shale, hydrothermal hydraulic breccia and albitites. Most of the emeralds occur in calcite veins that suddenly cross-cut with no relationship of factors (faults, discontinuities, lateral continuity). In an attempt to explain these, a new concept called Slope Tectonics is applied, which identifies slope induced deformations that were initially related to a pure tectonic origin. We associate present-day exte-rior slope deformations with the structures observed inside the tunnels. These observations used remote sensing techniques (DEM, LANDSAT,) and geomorphometry. The WEB has slope deformation areas correlated with emerald mines. However, the relationship between present-day slope deformation and ancient deformation inside mines could not be veri-fied. These findings could be useful for further exploration, research projects of emeralds, and general mineral deposits | en |
| dc.description.provenance | Made available in DSpace on 2021-06-17T03:23:41Z (GMT). No. of bitstreams: 1 U0001-1808202003465100.pdf: 13249038 bytes, checksum: 8e08020b6bccac204111bbd41b36909c (MD5) Previous issue date: 2020 | en |
| dc.description.tableofcontents | Content CHAPTER 1 INTRODUCTION. 1 CHAPTER 2 GEOLOGICAL SETTING. 3 2.1 Location. 3 2.2Evolution of the Eastern Cordillera. 6 2.3 Stratigraphy 11 2.4 Emerald Mineralization. 13 2.5 Local Geology 17 I. Structural Geology 17 II. Breccias: 18 III. Slope tectonics. 21 CHAPTER 3 METHODOLOGY. 24 3.1 Remote sensing. 25 CHAPTER 4 MINES 28 4.1 Regional Lineaments extraction. 29 4.2 Breccias in the Mines 30 4.3 Mining Districts. 34 4.3.1 Muzo District 36 I. Pavas mine. 37 II. Green Power Mine. 42 4.3.2 Muzo District Remote Sensing. 48 4.3.3 Cunas district 54 I. Cunas Mine 56 4.3.4 Cunas District Remote sensing. 59 CHAPTER 5 Discussion 81 CHAPTER 6 CONCLUSIONS 96 | |
| dc.language.iso | en | |
| dc.subject | Emeralds | zh_TW |
| dc.subject | Remote Sensing | zh_TW |
| dc.subject | Slumps | zh_TW |
| dc.subject | Slope Tectonics | zh_TW |
| dc.subject | Breccia | zh_TW |
| dc.subject | Colombia | zh_TW |
| dc.subject | Emeralds | en |
| dc.subject | Remote Sensing | en |
| dc.subject | Mines | en |
| dc.subject | Slumps | en |
| dc.subject | Slope Tectonics | en |
| dc.subject | Breccia | en |
| dc.subject | Colombia | en |
| dc.title | 滑坡構造的野外和遙感證據及其對哥倫比亞祖母綠開採的隱示 | zh_TW |
| dc.title | Field Geology Remote Sensing as Evidence for Slope Tectonics and Its Implications on Emerald Mining in Eastern Cordillera, Colombia. | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 108-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 郭力維(Li-Wei Kuo),陳 惠芬(Huei-Fen Chen) | |
| dc.subject.keyword | Emeralds,Colombia,Breccia,Slope Tectonics,Slumps,Remote Sensing, | zh_TW |
| dc.subject.keyword | Emeralds,Colombia,Breccia,Slope Tectonics,Slumps,Mines,Remote Sensing, | en |
| dc.relation.page | 106 | |
| dc.identifier.doi | 10.6342/NTU202003916 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2020-08-20 | |
| dc.contributor.author-college | 理學院 | zh_TW |
| dc.contributor.author-dept | 地質科學研究所 | zh_TW |
| Appears in Collections: | 地質科學系 | |
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| File | Size | Format | |
|---|---|---|---|
| U0001-1808202003465100.pdf Restricted Access | 12.94 MB | Adobe PDF |
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