Fossilised biomolecules and biomarkers in carbonate concretions from konservat-lagerstätten
© 2019 by the authors. Licensee MDPI, Basel, Switzerland. In the vast majority of fossils, the organic matter is degraded with only an impression or cast of the organism remaining. In rare cases, ideal burial conditions result in a rapid fossilisation with an exceptional preservation of soft tissues...
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| Format: | Journal Article |
| Language: | English |
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MDPI
2019
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| Online Access: | http://purl.org/au-research/grants/arc/DP130100577 http://hdl.handle.net/20.500.11937/76418 |
| _version_ | 1848763684481925120 |
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| author | Grice, Kliti Holman, Alex Plet, C. Tripp, Madison |
| author_facet | Grice, Kliti Holman, Alex Plet, C. Tripp, Madison |
| author_sort | Grice, Kliti |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2019 by the authors. Licensee MDPI, Basel, Switzerland. In the vast majority of fossils, the organic matter is degraded with only an impression or cast of the organism remaining. In rare cases, ideal burial conditions result in a rapid fossilisation with an exceptional preservation of soft tissues and occasionally organic matter. Such deposits are known as Lagerstätten and have been found throughout the geological record. Exceptional preservation is often associated with finely crystalline quartz (e.g., cherts), fine sediments (e.g., muds) or volcanic ashes. Other mechanisms include burial in anoxic/euxinic sediments and in the absence of turbidity or scavenging. Exceptional preservation can also occur when an organism is encapsulated in carbonate cement, forming a concretion. This mechanism involves complex microbial processes, resulting in a supersaturation in carbonate, with microbial sulfate reduction and methane cycling the most commonly suggested processes. In addition, conditions of photic zone euxinia are often found to occur during concretion formation in marine environments. Concretions are ideal for the study of ancient and long-extinct organisms, through both imaging techniques and biomolecular approaches. These studies have provided valuable insights into the evolution of organisms and their environments through the Phanerozoic and have contributed to increasing interest in fields including chemotaxonomy, palaeobiology, palaeoecology and palaeophysiology. |
| first_indexed | 2025-11-14T11:07:22Z |
| format | Journal Article |
| id | curtin-20.500.11937-76418 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:07:22Z |
| publishDate | 2019 |
| publisher | MDPI |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-764182022-10-06T05:09:06Z Fossilised biomolecules and biomarkers in carbonate concretions from konservat-lagerstätten Grice, Kliti Holman, Alex Plet, C. Tripp, Madison Science & Technology Physical Sciences Mineralogy Mining & Mineral Processing concretions preservation biomarkers soft tissue evolution chlorobi lagerstatten fossilisation PHOTIC-ZONE EUXINIA SOFT-TISSUE PRESERVATION GREEN RIVER FORMATION EXCEPTIONAL PRESERVATION SANTANA FORMATION GROWTH MECHANISMS INTERTIDAL MARSH YIXIAN FORMATION ARARIPE BASIN SEDIMENTS © 2019 by the authors. Licensee MDPI, Basel, Switzerland. In the vast majority of fossils, the organic matter is degraded with only an impression or cast of the organism remaining. In rare cases, ideal burial conditions result in a rapid fossilisation with an exceptional preservation of soft tissues and occasionally organic matter. Such deposits are known as Lagerstätten and have been found throughout the geological record. Exceptional preservation is often associated with finely crystalline quartz (e.g., cherts), fine sediments (e.g., muds) or volcanic ashes. Other mechanisms include burial in anoxic/euxinic sediments and in the absence of turbidity or scavenging. Exceptional preservation can also occur when an organism is encapsulated in carbonate cement, forming a concretion. This mechanism involves complex microbial processes, resulting in a supersaturation in carbonate, with microbial sulfate reduction and methane cycling the most commonly suggested processes. In addition, conditions of photic zone euxinia are often found to occur during concretion formation in marine environments. Concretions are ideal for the study of ancient and long-extinct organisms, through both imaging techniques and biomolecular approaches. These studies have provided valuable insights into the evolution of organisms and their environments through the Phanerozoic and have contributed to increasing interest in fields including chemotaxonomy, palaeobiology, palaeoecology and palaeophysiology. 2019 Journal Article http://hdl.handle.net/20.500.11937/76418 10.3390/min9030158 English http://purl.org/au-research/grants/arc/DP130100577 http://creativecommons.org/licenses/by/4.0/ MDPI fulltext |
| spellingShingle | Science & Technology Physical Sciences Mineralogy Mining & Mineral Processing concretions preservation biomarkers soft tissue evolution chlorobi lagerstatten fossilisation PHOTIC-ZONE EUXINIA SOFT-TISSUE PRESERVATION GREEN RIVER FORMATION EXCEPTIONAL PRESERVATION SANTANA FORMATION GROWTH MECHANISMS INTERTIDAL MARSH YIXIAN FORMATION ARARIPE BASIN SEDIMENTS Grice, Kliti Holman, Alex Plet, C. Tripp, Madison Fossilised biomolecules and biomarkers in carbonate concretions from konservat-lagerstätten |
| title | Fossilised biomolecules and biomarkers in carbonate concretions from konservat-lagerstätten |
| title_full | Fossilised biomolecules and biomarkers in carbonate concretions from konservat-lagerstätten |
| title_fullStr | Fossilised biomolecules and biomarkers in carbonate concretions from konservat-lagerstätten |
| title_full_unstemmed | Fossilised biomolecules and biomarkers in carbonate concretions from konservat-lagerstätten |
| title_short | Fossilised biomolecules and biomarkers in carbonate concretions from konservat-lagerstätten |
| title_sort | fossilised biomolecules and biomarkers in carbonate concretions from konservat-lagerstätten |
| topic | Science & Technology Physical Sciences Mineralogy Mining & Mineral Processing concretions preservation biomarkers soft tissue evolution chlorobi lagerstatten fossilisation PHOTIC-ZONE EUXINIA SOFT-TISSUE PRESERVATION GREEN RIVER FORMATION EXCEPTIONAL PRESERVATION SANTANA FORMATION GROWTH MECHANISMS INTERTIDAL MARSH YIXIAN FORMATION ARARIPE BASIN SEDIMENTS |
| url | http://purl.org/au-research/grants/arc/DP130100577 http://hdl.handle.net/20.500.11937/76418 |