| Автор | BERGSTRÖM, STIG M. |
| Автор | AGEMATSU, SACHIKO |
| Автор | SCHMITZ, BIRGER |
| Дата выпуска | 2010 |
| dc.description | AbstractApart from a single study of the early Katian δ<sup>13</sup>C chemostratigraphy in two regions in China, no investigations of the Sandbian and Katian chemostratigraphy have been published from anywhere in Asia. A recent study of the conodont biostratigraphy of the classical Ordovician succession on Langkawi Islands, peninsular Malaysia, showed the presence there of strata coeval with those having the Guttenberg Carbon Excursion (GICE) on the Yangtze Platform. In an effort to establish for the first time the presence of this widespread δ<sup>13</sup>C excursion in southern Asia, a series of samples from the upper part of the Kaki Bukit Formation was isotopically analysed. This resulted in the discovery of a conspicuous δ<sup>13</sup>C excursion with peak values of ~ 2 ‰ above the baseline values. The excursion is located just above the Baltoniodus alobatus Subzone and near the level of the first appearance of Hamarodus europaeus, hence the same stratigraphic position as the GICE on the Yangtze Platform. Using the GICE, the Malaysian study interval is closely correlated with the GICE intervals at three localities representing an approximately 23 000 km long transect from Malaysia across Baltoscandia to central North America. This shows the usefulness of δ<sup>13</sup>C chemostratigraphy to clarify previously obscure stratigraphic relationships between geographically very widely separated localities. |
| Формат | application.pdf |
| Издатель | Cambridge University Press |
| Копирайт | Copyright © Cambridge University Press 2010 |
| Тема | Ordovician |
| Тема | GICE |
| Тема | δ<sup>13</sup>C chemostratigraphy |
| Тема | China |
| Тема | Malaysia |
| Тема | North America |
| Тема | Baltoscandia |
| Название | Global Upper Ordovician correlation by means of δ<sup>13</sup>C chemostratigraphy: implications of the discovery of the Guttenberg δ<sup>13</sup>C excursion (GICE) in Malaysia |
| Тип | research-article |
| DOI | 10.1017/S0016756810000142 |
| Electronic ISSN | 1469-5081 |
| Print ISSN | 0016-7568 |
| Журнал | Geological Magazine |
| Том | 147 |
| Первая страница | 641 |
| Последняя страница | 651 |
| Аффилиация | BERGSTRÖM STIG M.; The Ohio State University |
| Аффилиация | AGEMATSU SACHIKO; University of Tsukuba |
| Аффилиация | SCHMITZ BIRGER; Lund University |
| Выпуск | 5 |
