Enlargement of the area of the Timpton Large Igneous Province (ca. 1.75 ga) of the Siberian craton
We present new geochronological data on dolerites from the Chaya dyke swarm of the Baikal inlier of the Siberian craton. The U‐Pb dating of baddeleyite from one dyke located at the SW end of the Chaya dyke swarm yielded an age of 1752±6 Ma, similar to the previously obtained age of a dyke in the NE...
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| Format: | Article |
| Language: | English |
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Russian Academy of Sciences, Siberian Branch, Institute of the Earth's crust
2019-12-01
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| Series: | Геодинамика и тектонофизика |
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| Online Access: | https://www.gt-crust.ru/jour/article/view/933 |
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| author | D. P. Gladkochub T. V. Donskaya R. E. Ernst U. Söderlund A. M. Mazukabzov M. N. Shokhonova |
| author_facet | D. P. Gladkochub T. V. Donskaya R. E. Ernst U. Söderlund A. M. Mazukabzov M. N. Shokhonova |
| author_sort | D. P. Gladkochub |
| collection | DOAJ |
| description | We present new geochronological data on dolerites from the Chaya dyke swarm of the Baikal inlier of the Siberian craton. The U‐Pb dating of baddeleyite from one dyke located at the SW end of the Chaya dyke swarm yielded an age of 1752±6 Ma, similar to the previously obtained age of a dyke in the NE end of this swarm. These ages estab‐ lish an age of 1752 Ma for a unified Chaya dyke swarm that extends for more than 200 km in the Baikal inlier of the Siberian craton. These new data confirm that the entire Chaya dyke swarm (as well as the Timpton‐Algamay and Eastern Anabar swarms) is a part of an overall radiating dyke swarm belonging to the Late Paleoproterozoic Timpton Large Igneous Province (LIP), the center of which is located in the middle section of the Vilyuy river flow. Thus, the LIP is enlarged to include the area further west in the Siberian craton. |
| format | Article |
| id | doaj-art-1e45f222de6a4fd690c0f715e402ddad |
| institution | Kabale University |
| issn | 2078-502X |
| language | English |
| publishDate | 2019-12-01 |
| publisher | Russian Academy of Sciences, Siberian Branch, Institute of the Earth's crust |
| record_format | Article |
| series | Геодинамика и тектонофизика |
| spelling | doaj-art-1e45f222de6a4fd690c0f715e402ddad2025-08-20T03:59:45ZengRussian Academy of Sciences, Siberian Branch, Institute of the Earth's crustГеодинамика и тектонофизика2078-502X2019-12-0110482983910.5800/GT-2019-10-4-0444442Enlargement of the area of the Timpton Large Igneous Province (ca. 1.75 ga) of the Siberian cratonD. P. Gladkochub0T. V. Donskaya1R. E. Ernst2U. Söderlund3A. M. Mazukabzov4M. N. Shokhonova5Institute of the Earth’s Crust, Siberian Branch of RAS; Irkutsk Scientific Center, Siberian Branch of RAS; Irkutsk State UniversityInstitute of the Earth’s Crust, Siberian Branch of RASCarleton University; Tomsk State UniversityLund UniversityInstitute of the Earth’s Crust, Siberian Branch of RASInstitute of the Earth’s Crust, Siberian Branch of RASWe present new geochronological data on dolerites from the Chaya dyke swarm of the Baikal inlier of the Siberian craton. The U‐Pb dating of baddeleyite from one dyke located at the SW end of the Chaya dyke swarm yielded an age of 1752±6 Ma, similar to the previously obtained age of a dyke in the NE end of this swarm. These ages estab‐ lish an age of 1752 Ma for a unified Chaya dyke swarm that extends for more than 200 km in the Baikal inlier of the Siberian craton. These new data confirm that the entire Chaya dyke swarm (as well as the Timpton‐Algamay and Eastern Anabar swarms) is a part of an overall radiating dyke swarm belonging to the Late Paleoproterozoic Timpton Large Igneous Province (LIP), the center of which is located in the middle section of the Vilyuy river flow. Thus, the LIP is enlarged to include the area further west in the Siberian craton.https://www.gt-crust.ru/jour/article/view/933doleritedykeu–pb baddeleyite agepaleoproterozoiclarge igneous province (lip)siberian craton |
| spellingShingle | D. P. Gladkochub T. V. Donskaya R. E. Ernst U. Söderlund A. M. Mazukabzov M. N. Shokhonova Enlargement of the area of the Timpton Large Igneous Province (ca. 1.75 ga) of the Siberian craton Геодинамика и тектонофизика dolerite dyke u–pb baddeleyite age paleoproterozoic large igneous province (lip) siberian craton |
| title | Enlargement of the area of the Timpton Large Igneous Province (ca. 1.75 ga) of the Siberian craton |
| title_full | Enlargement of the area of the Timpton Large Igneous Province (ca. 1.75 ga) of the Siberian craton |
| title_fullStr | Enlargement of the area of the Timpton Large Igneous Province (ca. 1.75 ga) of the Siberian craton |
| title_full_unstemmed | Enlargement of the area of the Timpton Large Igneous Province (ca. 1.75 ga) of the Siberian craton |
| title_short | Enlargement of the area of the Timpton Large Igneous Province (ca. 1.75 ga) of the Siberian craton |
| title_sort | enlargement of the area of the timpton large igneous province ca 1 75 ga of the siberian craton |
| topic | dolerite dyke u–pb baddeleyite age paleoproterozoic large igneous province (lip) siberian craton |
| url | https://www.gt-crust.ru/jour/article/view/933 |
| work_keys_str_mv | AT dpgladkochub enlargementoftheareaofthetimptonlargeigneousprovinceca175gaofthesiberiancraton AT tvdonskaya enlargementoftheareaofthetimptonlargeigneousprovinceca175gaofthesiberiancraton AT reernst enlargementoftheareaofthetimptonlargeigneousprovinceca175gaofthesiberiancraton AT usoderlund enlargementoftheareaofthetimptonlargeigneousprovinceca175gaofthesiberiancraton AT ammazukabzov enlargementoftheareaofthetimptonlargeigneousprovinceca175gaofthesiberiancraton AT mnshokhonova enlargementoftheareaofthetimptonlargeigneousprovinceca175gaofthesiberiancraton |