Two-stage oxidation of petrogenic organic carbon in a rapidly exhuming small mountainous catchment
Abstract Globally, the oxidative flux of petrogenic organic carbon rivals the drawdown by silicate weathering and burial of biospheric carbon. Where and how petrogenic organic carbon is susceptible to degradation along the short-path river-marine continuum in active orogens remains elusive. Here, we...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Communications Earth & Environment |
| Online Access: | https://doi.org/10.1038/s43247-025-02015-8 |
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| author | Wan-Yin Lien Chih-Tung Chen Yun-Hsuan Lee Chih-Chieh Su Pei-Ling Wang Li-Hung Lin |
| author_facet | Wan-Yin Lien Chih-Tung Chen Yun-Hsuan Lee Chih-Chieh Su Pei-Ling Wang Li-Hung Lin |
| author_sort | Wan-Yin Lien |
| collection | DOAJ |
| description | Abstract Globally, the oxidative flux of petrogenic organic carbon rivals the drawdown by silicate weathering and burial of biospheric carbon. Where and how petrogenic organic carbon is susceptible to degradation along the short-path river-marine continuum in active orogens remains elusive. Here, we demonstrate the transformation of petrogenic organic carbon from a mountainous catchment in eastern Taiwan and its connecting submarine canyon. Our Raman analyses indicate that while highly graphitized carbon in slate/schist transformed into disordered form during soil development, the preferential elimination of disordered form was found along submarine transit. Additionally, quartz/rutile outperformed mica in protecting petrogenic organic carbon from transport abrasion and microbial degradation. Such an oxidative flux was estimated to be 20–35 metric tons of carbon per square kilometer per year, ranking among the greatest levels around the world and highlighting tectonically active islands and the surrounding marine systems as a hotspot of carbon emission. |
| format | Article |
| id | doaj-art-db3276beb5554f169511ae3f30cb4189 |
| institution | Kabale University |
| issn | 2662-4435 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Earth & Environment |
| spelling | doaj-art-db3276beb5554f169511ae3f30cb41892025-01-26T12:53:59ZengNature PortfolioCommunications Earth & Environment2662-44352025-01-016111310.1038/s43247-025-02015-8Two-stage oxidation of petrogenic organic carbon in a rapidly exhuming small mountainous catchmentWan-Yin Lien0Chih-Tung Chen1Yun-Hsuan Lee2Chih-Chieh Su3Pei-Ling Wang4Li-Hung Lin5Department of Geosciences, National Taiwan UniversityDepartment of Earth Sciences, National Central UniversityDepartment of Geosciences, National Taiwan UniversityInstitute of Oceanography, National Taiwan UniversityInstitute of Oceanography, National Taiwan UniversityDepartment of Geosciences, National Taiwan UniversityAbstract Globally, the oxidative flux of petrogenic organic carbon rivals the drawdown by silicate weathering and burial of biospheric carbon. Where and how petrogenic organic carbon is susceptible to degradation along the short-path river-marine continuum in active orogens remains elusive. Here, we demonstrate the transformation of petrogenic organic carbon from a mountainous catchment in eastern Taiwan and its connecting submarine canyon. Our Raman analyses indicate that while highly graphitized carbon in slate/schist transformed into disordered form during soil development, the preferential elimination of disordered form was found along submarine transit. Additionally, quartz/rutile outperformed mica in protecting petrogenic organic carbon from transport abrasion and microbial degradation. Such an oxidative flux was estimated to be 20–35 metric tons of carbon per square kilometer per year, ranking among the greatest levels around the world and highlighting tectonically active islands and the surrounding marine systems as a hotspot of carbon emission.https://doi.org/10.1038/s43247-025-02015-8 |
| spellingShingle | Wan-Yin Lien Chih-Tung Chen Yun-Hsuan Lee Chih-Chieh Su Pei-Ling Wang Li-Hung Lin Two-stage oxidation of petrogenic organic carbon in a rapidly exhuming small mountainous catchment Communications Earth & Environment |
| title | Two-stage oxidation of petrogenic organic carbon in a rapidly exhuming small mountainous catchment |
| title_full | Two-stage oxidation of petrogenic organic carbon in a rapidly exhuming small mountainous catchment |
| title_fullStr | Two-stage oxidation of petrogenic organic carbon in a rapidly exhuming small mountainous catchment |
| title_full_unstemmed | Two-stage oxidation of petrogenic organic carbon in a rapidly exhuming small mountainous catchment |
| title_short | Two-stage oxidation of petrogenic organic carbon in a rapidly exhuming small mountainous catchment |
| title_sort | two stage oxidation of petrogenic organic carbon in a rapidly exhuming small mountainous catchment |
| url | https://doi.org/10.1038/s43247-025-02015-8 |
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