低温高压榴辉岩锆石Ti温度计的有效性

蔺梦; 张贵宾; 宋述光; 李慧娟; 张丽娟

doi:10.3799/dqkx.2019.268

低温高压榴辉岩锆石Ti温度计的有效性

doi: 10.3799/dqkx.2019.268

北京大学地球与空间科学学院, 造山带与地壳演化重点实验室, 北京 100871

基金项目:

国家“973”计划项目 2015CB56105

国家自然科学基金项目 41972056

国家自然科学基金项目 41622202

国家自然科学基金项目 91755206

国家重点研发计划项目 2017YFC0601302

详细信息

作者简介:
蔺梦(1994-), 女, 博士, 主要从事变质岩和地球化学研究

中图分类号: P595
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- 被引次数: 0
出版历程
- 收稿日期: 2019-09-02
- 刊出日期: 2019-12-15

The Validity of Ti-in-Zircon Thermometry in Low-Temperature/High-Pressure Eclogites

Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Science, Peking University, Beijing 100871, China

摘要

摘要: 为了探讨锆石的Ti温度计对于低温高压（超高压）榴辉岩的适用性，利用前人版本的温度计对北祁连和西天山4个典型低温高压（超高压）榴辉岩中的锆石进行了温度计算.结合其他地区高压/超高压榴辉岩锆石文献数据，发现对于低温变质锆石，Ti温度计得到的结果普遍高于其他温度计算方法，最高可达到58%.虽然温度是控制锆石中Ti含量的主要因素，但是其他因素（例如压力、SiO₂和TiO₂的活度，锆石中的晶格缺陷、其他微量元素替代、锆石的不平衡生长和变质流体活动）也会影响锆石Ti温度计的计算结果.研究认为，在锆石重结晶和再生长过程中，流体活动可能是造成锆石Ti温度计计算结果偏高的主要原因.
- 锆石 /
- 锆石Ti温度计 /
- 低温高压(超高压)榴辉岩 /
- 变质流体 /
- 岩石学
Abstract: In order to investigate the applicability of Ti-in-zircon thermometry to low temperature and high pressure eclogites,we used the calibration of other scholars to estimate the metamorphic temperatures for four typical low-temperature and high (ultrahigh)-pressure eclogites from North Qilian and western Tianshan,China. Compiled different HP/UHP eclogite samples from the literature,the Ti-in-zircon temperatures are generally higher than the estimations by other thermometers (up to 58%),especially for low-temperature metamorphic zircon. Although temperature exerts the dominant control on Ti content in zircon,other factors (e.g. pressure,TiO₂ and SiO₂ activity,lattice defect,other trace element substitutions,disequilibrium zircon growth and metamorphic fluids) also influence the calculated temperature results. This study proposes the metamorphic fluids may have contributed to the overestimated Ti-in-zircon temperatures.
- zircon /
- Ti-in-zircon thermometer /
- low-temperature/high (ultrahigh)-pressure eclogite /
- metamorphic fluids /
- petrology

HTML全文

图 1 锆石阴极发光图像和Ti、U元素含量

温度数据根据Ferry and Watson(2007)提出的锆石Ti温度计计算，空心圆圈代表激光剥蚀点.a和b.样品QS45；c.样品2Q27；d.样品15BJS；e~h.样品HB121;Ti, U的单位为10^-6

Fig. 1. Cathodoluminescene images of zircon samples with Ti and U contents

下载: 全尺寸图片幻灯片

图 2 不同地区榴辉岩样品的锆石Ti温度计和其他温度计温度结果对比

a.大别-苏鲁造山带；b.红安、桐柏和北山造山带；c.柴北缘和北祁连造山带；d.西南天山、阿尔卑斯造山带、弗朗西斯科杂岩、希腊蒂诺斯岛和罗多彼杂岩

Fig. 2. Plots of the Ti-in-zircon temperatures vs. estimations by other thermometers for eclogite samples

下载: 全尺寸图片幻灯片

图 3 相同地区同岩性样品的锆石Ti温度计和其他温度计温度结果对比

a.石榴石-单斜辉石Fe-Mg交换温度计和其他矿物对温度计；b.金红石Zr温度计，石英-矿物氧同位素温度计和相平衡模拟

Fig. 3. Plots of the Ti-in-zircon temperatures for all samples compiled vs. the results from other thermometers

下载: 全尺寸图片幻灯片

图 4 锆石Ti-U相关性对比

a.大洋型榴辉岩样品；b.大陆型榴辉岩样品

Fig. 4. Plots of Ti vs. U contents in zircon

下载: 全尺寸图片幻灯片

参考文献(38)

[1]	Antignano, A., Manning, C.E., 2008.Rutile Solubility in H₂O, H₂O-SiO₂, and H₂O-NaAlSi₃O₈ Fluids at 0.7-2.0 GPa and 700-1 000 ℃:Implications for Mobility of Nominally Insoluble Elements.Chemical Geology, 255(1-2):283-293. https://doi.org/10.1016/j.chemgeo.2008.07.001
[2]	Beinlich, A., Klemd, R., John, T., et al., 2010.Trace-Element Mobilization during Ca-Metasomatism along a Major Fluid Conduit:Eclogitization of Blueschist as a Consequence of Fluid-Rock Interaction.Geochimica et Cosmochimica Acta, 74(6):1892-1922. https://doi.org/10.1016/j.gca.2009.12.011
[3]	Breiter, K., Förster, H.J., Škoda, R., 2006.Extreme P-, Bi-, Nb-, Sc-, U- and F-Rich Zircon from Fractionated Perphosphorous Granites:The Peraluminous Podlesí Granite System, Czech Republic.Lithos, 88(1-4):15-34. https://doi.org/10.1016/j.lithos.2005.08.011
[4]	Bulle, F., Bröcker, M., Gärtner, C., et al., 2010.Geochemistry and Geochronology of HP Mélanges from Tinos and Andros, Cycladic Blueschist Belt, Greece.Lithos, 117(1-4):61-81. https://doi.org/10.1016/j.lithos.2010.02.004
[5]	Carswell, D.A., 1990.Eclogite Facies Rocks.Blackie, Glasgow, London.
[6]	Castelli, D., Rolfo, F., Compagnoni, R., et al., 1998.Metamorphic Veins with Kyanite, Zoisite and Quartz in the Zhu-Jia-Chong Eclogite, Dabie Shan, China.The Island Arc, 7(1-2):159-173. https://doi.org/10.1046/j.1440-1738.1998.00185.x
[7]	Chen, R.X., Zheng, Y.F., Xie, L.W., 2010.Metamorphic Growth and Recrystallization of Zircon:Distinction by Simultaneous In-Situ Analyses of Trace Elements, U-Th-Pb and Lu-Hf Isotopes in Zircons from Eclogite-Facies Rocks in the Sulu Orogen.Lithos, 114(1-2):132-154. https://doi.org/10.1016/j.lithos.2009.08.006
[8]	Ferriss, E.D.A., Essene, E, J., Becker, U., 2008.Computational Study of the Effect of Pressure on the Ti-in-Zircon Geothermometer.European Journal of Mineralogy, 20(5):745-755. https://doi.org/10.1127/0935-1221/2008/0020-1860
[9]	Ferry, J.M., Watson, E.B., 2007.New Thermodynamic Models and Revised Calibrations for the Ti-in-Zircon and Zr-in-Rutile Thermometers.Contributions to Mineralogy and Petrology, 154(4):429-437. https://doi.org/10.1007/s00410-007-0201-0
[10]	Fu, B., Page, F.Z., Cavosie, A.J., et al., 2008.Ti-in-Zircon Thermometry:Applications and Limitations.Contributions to Mineralogy and Petrology, 156(2):197-215. https://doi.org/10.1007/s00410-008-0281-5
[11]	Gao, J., John, T., Klemd, R., et al., 2007.Mobilization of Ti-Nb-Ta during Subduction:Evidence from Rutile-Bearing Dehydration Segregations and Veins Hosted in Eclogite, Tianshan, NW China.Geochimica et Cosmochimica Acta, 71(20):4974-4996. https://doi.org/10.1016/j.gca.2007.07.027
[12]	Harrison, T.M., Schmitt, A.K., 2007.High Sensitivity Mapping of Ti Distributions in Hadean Zircons.Earth and Planetary Science Letters, 261(1-2):9-19. https://doi.org/10.1016/j.epsl.2007.05.016
[13]	Lin, M., Zhang, G.B., Song, S.G., et al., 2019.The Validity of Ti-in-Zircon Thermometry in Low Temperature Eclogites.Geological Society, London, Special Publications, 474(1):69-87. https://doi.org/10.1144/sp474.13
[14]	Liu, X., Wu, Y., Gao, S., et al., 2012.First Record and Timing of UHP Metamorphism from Zircon in the Xitieshan Terrane:Implications for the Evolution of the Entire North Qaidam Metamorphic Belt.American Mineralogist, 97(7):1083-1093. https://doi.org/10.2138/am.2012.4048
[15]	Münker, C., Wörner, G., Yogodzinski, G., et al., 2004.Behaviour of High Field Strength Elements in Subduction Zones:Constraints from Kamchatka-Aleutian Arc Lavas.Earth and Planetary Science Letters, 224(3-4):275-293. https://doi.org/10.1016/j.epsl.2004.05.030
[16]	Page, F.Z., Essene, E.J., Mukasa, S.B., et al., 2014.A Garnet-Zircon Oxygen Isotope Record of Subduction and Exhumation Fluids from the Franciscan Complex, California.Journal of Petrology, 55(1):103-131. https://doi.org/10.1093/petrology/egt062
[17]	Page, F.Z., Fu, B., Kita, N.T., et al., 2007.Zircons from Kimberlite:New Insights from Oxygen Isotopes, Trace Elements, and Ti in Zircon Thermometry.Geochimica et Cosmochimica Acta, 71(15):3887-3903. https://doi.org/10.1016/j.gca.2007.04.031
[18]	Rapp, J.F., Klemme, S., Butler, I.B., et al., 2010.Extremely High Solubility of Rutile in Chloride and Fluoride-Bearing Metamorphic Fluids:An Experimental Investigation.Geology, 38(4):323-326. https://doi.org/10.1130/g30753.1
[19]	Rubatto, D., Gebauer, D., Compagnoni, R., 1999.Dating of Eclogite-Facies Zircons:The Age of Alpine Metamorphism in the Sesia-Lanzo Zone (Western Alps). Earth and Planetary Science Letters, 167(3-4):141-158. https://doi.org/10.1016/s0012-821x(99)00031-x
[20]	Rubatto, D., Hermann, J., 2003.Zircon Formation during Fluid Circulation in Eclogites (Monviso, Western Alps):Implications for Zr and Hf Budget in Subduction Zones.Geochimica et Cosmochimica Acta, 67(12):2173-2187. https://doi.org/10.1016/s0016-7037(02)01321-2
[21]	Rubatto, D., Hermann, J., 2007.Zircon Behaviour in Deeply Subducted Rocks.Elements, 3(1):31-35. https://doi.org/10.2113/gselements.3.1.31
[22]	Schmidt, M.W., Poli, S., 2003.Generation of Mobile Components during Subduction of Oceanic Crust.Treatise on Geochemistry, 3:567-591. https://doi.org/10.1016/b0-08-043751-6/03034-6
[23]	Song, S.G., Zhang, L.F., Niu, Y.L., et al., 2004.Zircon U-Pb SHRIMP Ages of Eclogites from the North Qilian Mountains in NW China and Their Tectonic Implication.Chinese Science Bulletin, 49(8):848-852. https://doi.org/10.1007/bf02889759
[24]	Song, S.G., Zhang, L.F., Niu, Y., et al., 2007.Eclogite and Carpholite-Bearing Metasedimentary Rocks in the North Qilian Suture Zone, NW China:Implications for Early Palaeozoic Cold Oceanic Subduction and Water Transport into Mantle.Journal of Metamorphic Geology, 25(5):547-563. https://doi.org/10.1111/j.1525-1314.2007.00713.x
[25]	Spandler, C., Hermann, J., 2006.High-Pressure Veins in Eclogite from New Caledonia and Their Significance for Fluid Migration in Subduction Zones.Lithos, 89(1-2):135-153. https://doi.org/10.1016/j.lithos.2005.12.003
[26]	Spandler, C., Pettke, T., Rubatto, D., 2011.Internal and External Fluid Sources for Eclogite-Facies Veins in the Monviso Meta-Ophiolite, Western Alps:Implications for Fluid Flow in Subduction Zones.Journal of Petrology, 52(6):1207-1236. https://doi.org/10.1093/petrology/egr025
[27]	Watson, E.B., Wark, D.A., Thomas, J.B., 2006.Crystallization Thermometers for Zircon and Rutile.Contributions to Mineralogy and Petrology, 151(4):413-433. https://doi.org/10.1007/s00410-006-0068-5
[28]	Wu, Y.B., 2009.Multistage Evolution of Continental Collision Orogen:A Case Study for Western Dabie Orogen.Chinese Science Bulletin, 54(15):2568-2579.
[29]	Xia, Q.X., Zheng, Y.F., Hu, Z.C., 2010.Trace Elements in Zircon and Coexisting Minerals from Low-T/UHP Metagranite in the Dabie Orogen:Implications for Action of Supercritical Fluid during Continental Subduction-Zone Metamorphism.Lithos, 114(3-4):385-412. https://doi.org/10.1016/j.lithos.2009.09.013
[30]	Xia, Q.X., Zheng, Y.F., Yuan, H.L., et al., 2009.Contrasting Lu-Hf and U-Th-Pb Isotope Systematics between Metamorphic Growth and Recrystallization of Zircon from Eclogite-Facies Metagranites in the Dabie Orogen, China.Lithos, 112(3-4):477-496. https://doi.org/10.1016/j.lithos.2009.04.015
[31]	Zhang, G.B., Zhang, L.F., Song, S.G., et al., 2009.UHP Metamorphic Evolution and SHRIMP Geochronology of a Coesite-Bearing Meta-Ophiolitic Gabbro in the North Qaidam, NW China.Journal of Asian Earth Sciences, 35(3-4):310-322. https://doi.org/10.1016/j.jseaes.2008.11.013
[32]	Zhang, G.B., Ellis, D.J., Christy, A.G., et al., 2010.Zr-in-Rutile Thermometry in HP/UHP Eclogites from Western China.Contributions to Mineralogy and Petrology, 160(3):427-439. https://doi.org/10.1007/s00410-009-0486-2
[33]	Zhang, L., Chen, R.X., Zheng, Y.F., et al., 2016b.Geochemical Constraints on the Protoliths of Eclogites and Blueschists from North Qilian, Northern Tibet.Chemical Geology, 421:26-43. https://doi.org/10.1016/j.chemgeo.2015.11.026
[34]	Zhang, L.F., Du, J.X., Lü, Z., et al., 2013b.A Huge Oceanic-Type UHP Metamorphic Belt in Southwestern Tianshan, China:Peak Metamorphic Age and P-T Path.Chinese Science Bulletin, 58(35):4378-4383. https://doi.org/10.1007/s11434-013-6074-x
[35]	Zhang, L.J., Zhang, L.F., Lü, Z., et al., 2016c.Nb-Ta Mobility and Fractionation during Exhumation of UHP Eclogite from Southwestern Tianshan, China.Journal of Asian Earth Sciences, 122:136-157. https://doi.org/10.1016/j.jseaes.2016.03.013
[36]	Zheng, Y.F., 2009.Fluid Regime in Continental Subduction Zones:Petrological Insights from Ultrahigh-Pressure Metamorphic Rocks.Journal of the Geological Society, 166(4):763-782. https://doi.org/10.1144/0016-76492008-016r
[37]	Zhou, L.G., Xia, Q.X., Zheng, Y.F., et al., 2011.Multistage Growth of Garnet in Ultrahigh-Pressure Eclogite during Continental Collision in the Dabie Orogen:Constrained by Trace Elements and U-Pb Ages.Lithos, 127(1-2):101-127. https://doi.org/10.1016/j.lithos.2011.08.010
[38]	Zhou, L.G., Xia, Q.X., Zheng, Y.F., et al., 2015.Tectonic Evolution from Oceanic Subduction to Continental Collision during the Closure of Paleotethyan Ocean:Geochronological and Geochemical Constraints from Metamorphic Rocks in the Hong'an Orogen.Gondwana Research, 28(1):348-370. https://doi.org/10.1016/j.gr.2014.03.009