https://scholars.lib.ntu.edu.tw/handle/123456789/431812
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Rehman H.U. | en_US |
dc.contributor.author | Iizuka Y. | en_US |
dc.contributor.author | Lee H.-Y. | en_US |
dc.contributor.author | Chung S.-L. | en_US |
dc.contributor.author | Duan Z. | en_US |
dc.contributor.author | Wei C. | en_US |
dc.contributor.author | Khan T. | en_US |
dc.contributor.author | Zafar T. | en_US |
dc.contributor.author | SUN-LIN CHUNG | en_US |
dc.creator | Rehman H.U.;Iizuka Y.;Lee H.-Y.;Chung S.-L.;Duan Z.;Wei C.;Khan T.;Zafar T.;Yamamoto H. | - |
dc.date.accessioned | 2019-11-20T08:40:05Z | - |
dc.date.available | 2019-11-20T08:40:05Z | - |
dc.date.issued | 2019 | - |
dc.identifier.issn | 00244937 | - |
dc.identifier.uri | https://scholars.lib.ntu.edu.tw/handle/123456789/431812 | - |
dc.description.abstract | This study reports zirconium-in-rutile thermometry data from the Himalayan ultrahigh-pressure eclogites and their retrogressed counterparts. The Zr contents of three textural varieties of rutile i.e. matrix rutile, inclusion phase, and overgrown by ilmenite/titanite from coesite-bearing eclogites, slightly retrogressed eclogites, highly retrogressed eclogites, and amphibolites were analyzed for Zr contents using the electron probe micro-analyser. Majority of the rutile grains exhibited homogeneous chemical compositions in all the aforementioned textural varieties; however, some of grains were relatively heterogeneous. Average temperature values of 729 ¢XC, 727 ¢XC, and 706 ¢XC were obtained for the matrix, inclusion, and overgrown rutiles from UHP eclogites and of 705 ¢XC, 699 ¢XC, and 707 ¢XC for those from HP eclogites, respectively. Slightly retrogressed eclogites yielded similar average T values of 703 ¢XC, 706 ¢XC, and 706 ¢XC, respectively, whereas highly retrogressed eclogites resulted in relatively low average temperatures, ca. 690 ¢XC, 691 ¢XC, and 679 ¢XC, respectively. When compared with these eclogites, lower average T values of 672 ¢XC, 630 ¢XC, and 656 ¢XC were obtained from garnetites, and of 665 ¢XC, 658 ¢XC, and 640 ¢XC from garnet amphibolites, respectively. The relatively homogeneous Zr contents and higher temperature values from the matrix rutile in HP and UHP eclogites suggest peak or near-peak metamorphic crystallization, whereas grains with low Zr contents, yielding low temperature values, were likely to be affected by the late-stage retrogression. ? 2019 Elsevier B.V. | - |
dc.language | English | - |
dc.relation.ispartof | Lithos | - |
dc.subject | Garnet-amphibolites | - |
dc.subject | Himalaya | - |
dc.subject | Kaghan Valley | - |
dc.subject | UHP eclogites | - |
dc.subject | Zr-in-rutile thermometry | - |
dc.title | Zirconium in rutile thermometry of the Himalayan ultrahigh-pressure eclogites and their retrogressed counterparts, Kaghan Valley, Pakistan | en_US |
dc.type | journal article | en |
dc.identifier.doi | 10.1016/j.lithos.2019.06.017 | - |
dc.identifier.scopus | 2-s2.0-85067862629 | - |
dc.identifier.url | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85067862629&doi=10.1016%2fj.lithos.2019.06.017&partnerID=40&md5=f05f8f7bf4db4de3fa61994b1a6d9152 | - |
dc.relation.pages | 86-99 | - |
dc.relation.journalvolume | 344-345 | - |
item.cerifentitytype | Publications | - |
item.fulltext | no fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
item.openairetype | journal article | - |
item.grantfulltext | none | - |
crisitem.author.dept | Geosciences | - |
crisitem.author.orcid | 0000-0002-5362-4496 | - |
crisitem.author.parentorg | College of Science | - |
顯示於: | 地質科學系 |
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