A comprehensive stalagmite investigation distinguishing anthropogenic and natural signals in Madagascar between 1680 and 1860
文献类型：期刊论文
| 作者 | Voarintsoa, Ny Riavo G.6; Fowler, Hallie M.1,6; Lapen, Thomas J.6; Rakotovao, Avotriniaina Z. M.2,7; Raza, Ali6; Li, Xianglei3; Cheng, Hai4,5 |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2025-07-08 |
| 卷号 | 15期号:1页码:16 |
| 关键词 | Madagascar O and C isotopes Redox conditions Anthropogenic traces Elemental composition Microstratigraphic log |
| ISSN号 | 2045-2322 |
| DOI | 10.1038/s41598-025-09222-5 |
| 通讯作者 | Voarintsoa, Ny Riavo G.(nyriavo.voarintsoa@gmail.com) |
| 英文摘要 | Disentangling anthropogenic from natural induced changes is difficult, but crucial to accurately assess the specific environmental impacts of humans' actions versus climate in the paleoclimate records. Here we combine a new set of proxies, including stable isotopes, element concentrations (mainly Mg, Sr, and U), and detailed mineralogy to better distinguish the impacts of these two factors in the stalagmite records. We studied the period between 1680 and 1860 CE because of the known historical events in Madagascar history (e.g., western colonization and the growth of Malagasy kingdom). This is an ideal period to study given these known events. Our data suggest that redox conditions during alternating wet and dry conditions is revealed by U/Ca covarying with delta 18O, but extreme climatic conditions may reverse that relationship. We also found an Mg/Ca increase combined with a decrease in delta 13C starting ca. 1820 CE that suggest anthropogenic imprints associated with local burning in Madagascar. This new multiproxy combination, paired with a thorough understanding of Madagascar history over this time allowed us to distinguish anthropogenic versus natural-induced signals in Madagascar stalagmite. This unique and novel pairing of proxies can be used to understand and predict human and natural induced changes in similar settings. |
| WOS关键词 | STABLE-ISOTOPE VARIATIONS ; OPEN SOLAR FLUX ; CLIMATE-CHANGE ; NORTHWESTERN MADAGASCAR ; ENVIRONMENTAL CONTROLS ; CALCITE PRECIPITATION ; CENTENNIAL VARIATIONS ; CRYSTAL MORPHOLOGY ; SPELEOTHEM RECORDS ; MAHAJANGA BASIN |
| 资助项目 | UH-NRUF-National Research University Fund, NRUF FS 21 NSM[R0506078] ; UH-NRUF-National Research University Fund NRUF FS 21 NSM ; Schlumberger Foundation Faculty for the Future ; Geological Society of America |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:001524953600025 |
| 出版者 | NATURE PORTFOLIO |
| 资助机构 | UH-NRUF-National Research University Fund, NRUF FS 21 NSM ; UH-NRUF-National Research University Fund NRUF FS 21 NSM ; Schlumberger Foundation Faculty for the Future ; Geological Society of America |
| 源URL | [http://119.78.100.205/handle/311034/24402]  |
| 专题 | 中国科学院古脊椎动物与古人类研究所 |
| 通讯作者 | Voarintsoa, Ny Riavo G. |
| 作者单位 | 1.Reservoir Grp, Core Labs, Houston, TX USA 2.Univ Antananarivo, Fac Sci, Ment Bassins Sedimentaires Evolut Conservat, Antananarivo, Madagascar 3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing, Peoples R China 4.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian, Peoples R China 5.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 6.Univ Houston, Dept Earth & Atmospher Sci, Houston, TX 77004 USA 7.Geol Soc Madagascar, Antananarivo, Madagascar |
| 推荐引用方式 GB/T 7714 | Voarintsoa, Ny Riavo G.,Fowler, Hallie M.,Lapen, Thomas J.,et al. A comprehensive stalagmite investigation distinguishing anthropogenic and natural signals in Madagascar between 1680 and 1860[J]. SCIENTIFIC REPORTS,2025,15(1):16. |
| APA | Voarintsoa, Ny Riavo G..,Fowler, Hallie M..,Lapen, Thomas J..,Rakotovao, Avotriniaina Z. M..,Raza, Ali.,...&Cheng, Hai.(2025).A comprehensive stalagmite investigation distinguishing anthropogenic and natural signals in Madagascar between 1680 and 1860.SCIENTIFIC REPORTS,15(1),16. |
| MLA | Voarintsoa, Ny Riavo G.,et al."A comprehensive stalagmite investigation distinguishing anthropogenic and natural signals in Madagascar between 1680 and 1860".SCIENTIFIC REPORTS 15.1(2025):16. |
入库方式： OAI收割
来源：古脊椎动物与古人类研究所
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