File Download
There are no files associated with this item.
Links for fulltext
(May Require Subscription)
- Publisher Website: 10.1016/j.gr.2006.10.003
- Scopus: eid_2-s2.0-35648946925
- WOS: WOS:000251447400005
- Find via
Supplementary
- Citations:
- Appears in Collections:
Article: Zircon U-Pb geochronology of gneissic rocks in the Yunkai massif and its implications on the Caledonian event in the South China Block
Title | Zircon U-Pb geochronology of gneissic rocks in the Yunkai massif and its implications on the Caledonian event in the South China Block |
---|---|
Authors | |
Keywords | Caledonian Tectonothermal Event Gneissic Rocks Intracontinental Collision South China Yunkai Massif Zircon U-Pb Geochronology |
Issue Date | 2007 |
Publisher | Elsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jcr |
Citation | Gondwana Research, 2007, v. 12 n. 4, p. 404-416 How to Cite? |
Abstract | This paper presents new zircon U-Pb data and interpretations for the gneissic rocks in the Yunkai massif in order to constrain the timing and evolution of the Caledonian tectonothermal event in the South China Block (SCB). Magmatic and inherited zircons from the orthogneiss in the region, previously thought to be of Precambrian origin, yielded 206Pb/ 238U apparent ages of 421-441 Ma and 513-1343 Ma, respectively. Also a weighted mean 206Pb/ 238U age of 236.0 ± 3.1 Ma was obtained, interpreted as the metamorphic resetting age during the Indosinian tectonic event. Our analyses show that the paragneiss in the region, previously regarded as Proterozoic sedimentary rocks, contains detrital zircons of the Archaean to Paleozoic origin, of which the youngest zircons yielded the U-Pb age of ∼ 423 Ma. These data indicate that (1) the Proterozoic and Archaean components may exist beneath the Yunkai massif; (2) most of the metaigneous rocks are actually the Caledonian anatectic granites possibly overprinted by Indosinian (∼ 236 Ma) reactivation; (3) some paragneiss might have originally deposited during the Devonian time; and (4) a subsequently rapid uplifting took place after the emplacement of the Caledonian granites, revealed by the observation that the Devonian clastic strata uncomfortably overlie the Caledonian granites. In combination with other geochronological data and geological observations throughout the SCB, we propose that the Caledonian tectonothermal event around Silurian (∼ 450-400 Ma) might be a result from an intracontinental collision between the Yangtze and Cathaysian blocks in response to the subduction/collision between the North China block and SCB. © 2006 International Association for Gondwana Research. |
Persistent Identifier | http://hdl.handle.net/10722/151225 |
ISSN | 2023 Impact Factor: 7.2 2023 SCImago Journal Rankings: 1.742 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Wang, Y | en_US |
dc.contributor.author | Fan, W | en_US |
dc.contributor.author | Zhao, G | en_US |
dc.contributor.author | Ji, S | en_US |
dc.contributor.author | Peng, T | en_US |
dc.date.accessioned | 2012-06-26T06:18:58Z | - |
dc.date.available | 2012-06-26T06:18:58Z | - |
dc.date.issued | 2007 | en_US |
dc.identifier.citation | Gondwana Research, 2007, v. 12 n. 4, p. 404-416 | en_US |
dc.identifier.issn | 1342-937X | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/151225 | - |
dc.description.abstract | This paper presents new zircon U-Pb data and interpretations for the gneissic rocks in the Yunkai massif in order to constrain the timing and evolution of the Caledonian tectonothermal event in the South China Block (SCB). Magmatic and inherited zircons from the orthogneiss in the region, previously thought to be of Precambrian origin, yielded 206Pb/ 238U apparent ages of 421-441 Ma and 513-1343 Ma, respectively. Also a weighted mean 206Pb/ 238U age of 236.0 ± 3.1 Ma was obtained, interpreted as the metamorphic resetting age during the Indosinian tectonic event. Our analyses show that the paragneiss in the region, previously regarded as Proterozoic sedimentary rocks, contains detrital zircons of the Archaean to Paleozoic origin, of which the youngest zircons yielded the U-Pb age of ∼ 423 Ma. These data indicate that (1) the Proterozoic and Archaean components may exist beneath the Yunkai massif; (2) most of the metaigneous rocks are actually the Caledonian anatectic granites possibly overprinted by Indosinian (∼ 236 Ma) reactivation; (3) some paragneiss might have originally deposited during the Devonian time; and (4) a subsequently rapid uplifting took place after the emplacement of the Caledonian granites, revealed by the observation that the Devonian clastic strata uncomfortably overlie the Caledonian granites. In combination with other geochronological data and geological observations throughout the SCB, we propose that the Caledonian tectonothermal event around Silurian (∼ 450-400 Ma) might be a result from an intracontinental collision between the Yangtze and Cathaysian blocks in response to the subduction/collision between the North China block and SCB. © 2006 International Association for Gondwana Research. | en_US |
dc.language | eng | en_US |
dc.publisher | Elsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jcr | en_US |
dc.relation.ispartof | Gondwana Research | en_US |
dc.subject | Caledonian Tectonothermal Event | en_US |
dc.subject | Gneissic Rocks | en_US |
dc.subject | Intracontinental Collision | en_US |
dc.subject | South China | en_US |
dc.subject | Yunkai Massif | en_US |
dc.subject | Zircon U-Pb Geochronology | en_US |
dc.title | Zircon U-Pb geochronology of gneissic rocks in the Yunkai massif and its implications on the Caledonian event in the South China Block | en_US |
dc.type | Article | en_US |
dc.identifier.email | Zhao, G:gzhao@hkucc.hku.hk | en_US |
dc.identifier.authority | Zhao, G=rp00842 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1016/j.gr.2006.10.003 | en_US |
dc.identifier.scopus | eid_2-s2.0-35648946925 | en_US |
dc.identifier.hkuros | 144321 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-35648946925&selection=ref&src=s&origin=recordpage | en_US |
dc.identifier.volume | 12 | en_US |
dc.identifier.issue | 4 | en_US |
dc.identifier.spage | 404 | en_US |
dc.identifier.epage | 416 | en_US |
dc.identifier.isi | WOS:000251447400005 | - |
dc.publisher.place | Netherlands | en_US |
dc.identifier.scopusauthorid | Wang, Y=36496272800 | en_US |
dc.identifier.scopusauthorid | Fan, W=7401635313 | en_US |
dc.identifier.scopusauthorid | Zhao, G=7403296321 | en_US |
dc.identifier.scopusauthorid | Ji, S=7409681749 | en_US |
dc.identifier.scopusauthorid | Peng, T=7201447871 | en_US |
dc.identifier.issnl | 1342-937X | - |