Biomarkers and stable isotopic compositions associated with sulfide-rich ancient deposits from mass extinction events
This PhD investigates past marine environment affected by ecological crises. Biomarkers and isotopic analyses were conducted in a Devonian-invertebrate and in Early-Triassic samples. Photic zone euxinic conditions and microbial activity are crucial for exceptional biomass preservation. Paradoxically...
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| Format: | Thesis |
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Curtin University
2014
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| Online Access: | http://hdl.handle.net/20.500.11937/57604 |
| _version_ | 1848760062889164800 |
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| author | Melendez Mogollon, Ines Mercedes |
| author_facet | Melendez Mogollon, Ines Mercedes |
| author_sort | Melendez Mogollon, Ines Mercedes |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This PhD investigates past marine environment affected by ecological crises. Biomarkers and isotopic analyses were conducted in a Devonian-invertebrate and in Early-Triassic samples. Photic zone euxinic conditions and microbial activity are crucial for exceptional biomass preservation. Paradoxically, episodes of free H2S and microbial blooms after the end-Permian extinction, delayed the marine ecosystem recovery. This research has demonstrated organic geochemistry is a powerful tool to improve our understanding of ecosystems evolution and past environmental conditions. |
| first_indexed | 2025-11-14T10:09:49Z |
| format | Thesis |
| id | curtin-20.500.11937-57604 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:09:49Z |
| publishDate | 2014 |
| publisher | Curtin University |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-576042017-11-20T01:19:45Z Biomarkers and stable isotopic compositions associated with sulfide-rich ancient deposits from mass extinction events Melendez Mogollon, Ines Mercedes This PhD investigates past marine environment affected by ecological crises. Biomarkers and isotopic analyses were conducted in a Devonian-invertebrate and in Early-Triassic samples. Photic zone euxinic conditions and microbial activity are crucial for exceptional biomass preservation. Paradoxically, episodes of free H2S and microbial blooms after the end-Permian extinction, delayed the marine ecosystem recovery. This research has demonstrated organic geochemistry is a powerful tool to improve our understanding of ecosystems evolution and past environmental conditions. 2014 Thesis http://hdl.handle.net/20.500.11937/57604 Curtin University fulltext |
| spellingShingle | Melendez Mogollon, Ines Mercedes Biomarkers and stable isotopic compositions associated with sulfide-rich ancient deposits from mass extinction events |
| title | Biomarkers and stable isotopic compositions associated with sulfide-rich ancient deposits from mass extinction events |
| title_full | Biomarkers and stable isotopic compositions associated with sulfide-rich ancient deposits from mass extinction events |
| title_fullStr | Biomarkers and stable isotopic compositions associated with sulfide-rich ancient deposits from mass extinction events |
| title_full_unstemmed | Biomarkers and stable isotopic compositions associated with sulfide-rich ancient deposits from mass extinction events |
| title_short | Biomarkers and stable isotopic compositions associated with sulfide-rich ancient deposits from mass extinction events |
| title_sort | biomarkers and stable isotopic compositions associated with sulfide-rich ancient deposits from mass extinction events |
| url | http://hdl.handle.net/20.500.11937/57604 |