Full Text Available
Note: Clicking the button above will open the full text document at the original institutional repository in a new window.
Diamonds and their mineral inclusions from the Sloan diatremes of the Colorado-Wyoming State Line kimberlite district, North America
Bibliography: v. 1, pages 157-171.
Saved in:
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Thesis |
| Language: | English |
| Published: |
Department of Geological Sciences
2016
|
| Subjects: | |
| Tags: |
No Tags, Be the first to tag this record!
|
| _version_ | 1867613158019956736 |
|---|---|
| access_status_str | Open Access |
| author | Otter, Marshall Lorrence |
| author2 | Gurney, John J |
| author_browse | Gurney, John J Otter, Marshall Lorrence |
| author_facet | Gurney, John J Otter, Marshall Lorrence |
| author_sort | Otter, Marshall Lorrence |
| collection | Thesis |
| description | Bibliography: v. 1, pages 157-171. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/21976 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:31:41.113Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2016 |
| publishDateRange | 2016 |
| publishDateSort | 2016 |
| publisher | Department of Geological Sciences |
| publisherStr | Department of Geological Sciences |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/21976 Diamonds and their mineral inclusions from the Sloan diatremes of the Colorado-Wyoming State Line kimberlite district, North America Otter, Marshall Lorrence Gurney, John J Geological Sciences Bibliography: v. 1, pages 157-171. The Sloan diamonds were investigated for their physical characteristics, inclusion mineralogy and composition, and carbon isotope composition. The relationships between these features are described and interpreted with respect to diamond genesis. The physical characteristics investigated include crystal state, crystal regularity, primary morphology, resorption morphology, primary and secondary sizejmass, colour, surface features and inclusion content. Significant relationships between these characteristics were found. The proportion of an individual crystal, lost during resorption, decreases with increasing diamond size. Larger crystals and diamonds displaying brown colours appear to have been more susceptible to breakage relative to smaller crystals and diamonds of other colours, respectively. Brown colours were more common on smaller diamonds relative to larger stones and, further, were more common on single crystal forms relative to twinned/aggregate crystals. Variation in diamond physical characteristics between the various kimberlite phases in the Sloan 1 & 2 complex has been documented. The Sloan 2 phase is characterized by larger and less resorbed diamonds relative to those in other kimberlite phases in the diatreme. In addition, corrosion sculpture is much more common on Sloan 2 diamonds. 2016-09-28T19:04:42Z 2016-09-28T19:04:42Z 1989 Doctoral Thesis Doctoral PhD http://hdl.handle.net/11427/21976 eng application/pdf application/pdf Department of Geological Sciences Faculty of Science University of Cape Town |
| spellingShingle | Geological Sciences Otter, Marshall Lorrence Diamonds and their mineral inclusions from the Sloan diatremes of the Colorado-Wyoming State Line kimberlite district, North America |
| thesis_degree_str | Doctoral |
| title | Diamonds and their mineral inclusions from the Sloan diatremes of the Colorado-Wyoming State Line kimberlite district, North America |
| title_full | Diamonds and their mineral inclusions from the Sloan diatremes of the Colorado-Wyoming State Line kimberlite district, North America |
| title_fullStr | Diamonds and their mineral inclusions from the Sloan diatremes of the Colorado-Wyoming State Line kimberlite district, North America |
| title_full_unstemmed | Diamonds and their mineral inclusions from the Sloan diatremes of the Colorado-Wyoming State Line kimberlite district, North America |
| title_short | Diamonds and their mineral inclusions from the Sloan diatremes of the Colorado-Wyoming State Line kimberlite district, North America |
| title_sort | diamonds and their mineral inclusions from the sloan diatremes of the colorado wyoming state line kimberlite district north america |
| topic | Geological Sciences |
| url | http://hdl.handle.net/11427/21976 |
| work_keys_str_mv | AT ottermarshalllorrence diamondsandtheirmineralinclusionsfromthesloandiatremesofthecoloradowyomingstatelinekimberlitedistrictnorthamerica |