中國柴達木盆地北緣魚卡地區所發現的高壓-超高壓榴輝岩，可根據東西兩側的岩象觀察得知在顯微構造、粒徑和礦物組成上有許多不同的相異點。因此針對此疑點進行魚卡地區榴輝岩東西兩側之變質岩石學之研究比較。
經由岩象和礦物組成的觀察可以得到：魚卡地區榴輝岩東側可歸納出四個變質時期：(一)進變質時期綠簾石角閃岩相：角閃石Ⅰ+斜長石+鈉雲母+石英；(二)峰期變質榴輝岩相：石榴子石+單斜輝石+藍晶石+多矽白雲母+金紅石+石英；(三)退變質的榴輝岩相：角閃石Ⅱ+單斜輝石+金虹石+石英；(四)綠簾石角閃岩相：角閃石Ⅲ+斜長石+綠簾石/斜黝簾石+榍石+石英。在峰期變質時的溫壓範圍：T = 608.9 – 770.7 ℃，P = 1.87 – 2.91 GPa；退變質到綠簾石角閃岩相時的溫壓範圍：T = 514.0 – 645.0 ℃，P = 0.94 – 1.44 GPa。
魚卡地區榴輝岩西側可歸納出四個變質時期：(一)前進變質的綠簾石角閃岩相：綠簾石+角閃石Ⅰ+磷灰石+石英；(二)峰期變質的榴輝岩相：石榴子石+多矽白雲母+單斜輝石+金紅石+石英；(三)後退變質的榴輝岩相：石榴子石+角閃石Ⅱ+榍石+石英；(四)流體作用造成的退變質角閃岩相/綠簾石角閃岩相-角閃石Ⅲ+角閃石Ⅳ+綠簾石+斜長石+方解石+石英。在峰期變質時的溫壓範圍：T = 521.2 – 686.1 ℃，P = 2.07- 2.71 GPa；退變質到角閃岩相/綠簾石角閃岩相時的溫壓範圍T = 521.9 – 710.0℃，P = 0.39 – 1.25 GPa。
根據實驗所得到的結果顯示，流體的效應、構造應力作用和板塊隱沒和抬升的速率可能是影響魚卡地區榴輝岩兩側溫壓演化途徑差異的主要因素。

High pressure and ultrahigh pressure metamorphic rocks occur in Yuka, northern Qaidam basin, northwestern China. Many differences in petrography between eclogite in eastern Yuka and western Yuka observed, such as
microstructure, grain size, and mineral composition.
According to the observation of petrography and mineral composiotion, four metamorphic stages of eclogite in eastern Yuka are recogrized: the stage Ⅰ is epidote - amphibolite facies , the mineral assemblage contains AmpⅠ + Plag + Pg + Qtz; the stage Ⅱ is eclogite facies (peak metamorphism ) , the mineral assemblage contains Grt + Cpx + Ky + Phe + Rt + Qtz; the stage Ⅲ is retrograde eclogite facies, the mineral assemblage contains Amp Ⅱ + Cpx + Rt + Qtz; the stage Ⅳ is epidote - amphibolite facies, the mineral assemblage contains Amp Ⅲ + Plag + Ep / Czo + Spn + Qtz. The peak metamorphic temperature and pressure of eclogite in eastern Yuka is: T= 609 - 771℃, P= 1.87 - 2.91GPa; the temperature and pressure of Retrograde epidote-amphibolite facies is: T= 514 - 645℃, P= 0.94 - 1.44GPa.
Four metamorphic stages of eclogite in wastern Yuka are recogrized: the stage Ⅰ is prograde metamorphic epidote-amphibolite facies, the mineral assemblage contains Amp Ⅰ + Ep + Apatite + Qtz; the stage Ⅱ is eclogite facies (peak metamorphism), the mineral assemblage contains Grt + Phe + Cpx + Rt + Qtz; the stage Ⅲ is retrograde eclogite facies, the mineral assemblage contains Grt + Amp Ⅱ + Spn + Qtz; the stage Ⅳ is retrograde amphibolite / epidote - amphibolite facies caused by dluid effect, the mineral assemblage contains Amp Ⅲ + Amp Ⅳ + Ep + Plag + Cal + Qtz. The peak metamorphic temperature and pressure of eclogite in western Yuka is: T= 521 - 686℃, P= 2.07 - 2.71GPa; the temperature and pressure of retrograde epidote-amphibolite facies is: T= 522 - 710℃, P= 0.39 - 1.25GPa.
The fluid effect, the structure stress, and the velocities of plate subduction and up lifting are the possible factors.

中文部分
辛后田、周世軍、王惠初、郝國杰、陳能松、韓英善。柴達木盆地北緣“沙柳河岩群”的重新啟用; 西北地質，第37卷 第1期 P26 ~ P33，2004。
辛后田、郝國杰、王惠初、陳能松、韓英善、祁生勝。柴北緣前震旦紀地層系統的新認識; 前寒武紀研究進展，第25卷 第2期 P113 ~ P119，2002。
宋述光、Niu Yaoling、張立飛。榴輝岩的兩種變質演化軌跡和俯衝大陸地殼的差異折返­以柴北緣都蘭超高壓地體為例。第13卷 第3期 P515 - P525，2007。
李懷坤等。柴達木盆地北緣魚卡河含柯石英榴輝岩的確定及其意義。現代地質，第13卷 第1期 P43 ~ P50，1999。
孟繁聰、張建新、楊經綏。俯衝的大陸島弧—柴北緣片麻岩的地球化學和同位素證據。地質學報，第79卷 第1期 P46 ~ P55，2005。
高先志、陳發景、馬達德、汪立群、劉震。中、新生代柴達木北緣的盆地類型與構造演化; 西北地質，第36卷第4期 P16 ~ P24，2003。
陳意、葉凱、吳春明。 榴輝岩常用溫壓計在應用中應注意的問題。岩石學報。第21卷 第4期 P1067 - P1080，2005。
湯良杰、金之鈞、張明利、劉池陽、吳漢寧、由福報、張兵。柴達木盆地構造地理分析; 地學前緣，第7卷 第4期 P421 ~ P429，2000。
楊建軍、朱紅、鄧普福、周天禎、賴邵聰。柴達木北緣石榴石橄欖岩的發現及其意義; 岩石礦物學雜誌，第13卷第2期 P97 ~ P105，1994。
楊經綏、許志琴、李海兵、吳才來、崔軍文、張建新、陳文。我國西部柴北緣地區發現榴輝岩。科學通報，第43卷 第14期 P1544 ~ P1549，1998。
楊經綏、宋述光、許志琴等。柴北緣早古生代高壓-超高壓變質帶發現典型超高壓礦物-柯石英。地質學報，第75卷 第2期 P175 ~ P179，2001。
楊經綏、張建新、孟繁聰、史仁燈、吳才來、許志琴、李海兵、陳松勇。中國西北部柴北緣---阿爾金超高壓變質榴輝岩及其原岩性質探討；地質前緣，第10卷 第3期 P291~P314，2003。
張志堅、夏衛華、馮志文、王澤華。青海錫鐵山鉛鋅礦床構造及構造-有機流體與成礦的關係; 礦床地質，第13卷 增刊 P81 ~ P82，1994。
張建新、楊經綏、許志琴。阿爾金榴輝岩中超高壓變質證據。科學通報，第47 卷第2期 P231 ~ P234，2002。
張建新、孟繁聰、楊經綏。柴北緣西段榴輝岩相變質泥岩：榴輝岩與圍岩“原地”關係的證據。中國科學D輯，第34卷 第9期 P825 ~ P834，2004。
張建新、孟繁聰、楊經綏。柴北緣魚卡榴輝岩的P-T演化歷史；岩石礦物學雜誌，第24卷 第4期 P245 - P254，2005。
張建新、孟繁聰、于勝堯、戚學祥。柴北緣綠梁山高壓基性麻粒岩的變質演化歷史：岩石學及鋯石SHRIMP年代學證據。地學前緣，第14卷 第1期 P85 ~ P97，2007。
賴邵聰、鄧普福、趙海玲。柴達木北緣古生帶蛇綠岩及其構造意義；現代地質，第10卷 第1期 P18 ~ P27，1996。

英文部分：
Anderson, J. L. & Smith, D. R.. The effect of temperature and oxygen fugacity on Al-in-hornblende barometry. America Mineral. 80 P549 - P559, 1995.
Anderson, J. L.. Status of thermobarometry in granitic batholiths: Transactions of the Royal Society of Edinburgh. Geological Society of America . 87 P125 - P138, 1996.
Cawthorn, R. G. & Collerson, K. D. The recalculation of pyroxene end – member parameters and the estimation of ferrous and ferric iron content from electron microprobe analyses. American Mineralogist. 59(11–12) P1203 - P1208, 1974.
Droop, G. T. R. A general equation for estimating Fe3+ concentrations in Ferro- magnesian silicates and oxides from microprobe analyses, using stichiometric criteria. Mineralogical Magazing. 51 P431 - P435, 1987.
Ellis D J and Green D H.. An experimental study of the effecy of Ca upon the garnet-clinopyroxene Fe-Mg exchange equilibria.Contributions to Mineralogy and Petrology. 71 P13 - P22, 1979.
England,P.C. and Thompson,A.B. Pressure-Temperature-Time Paths of Regional Metamorphism I.Heat Transfer during the Evolution of Regions of Thickened Continental Crust. Journal of Petrology. 25 P894 - P928, 1984.
Holland, T. J. B. & Powell, R. An enlarged and updated internally consist- ent thermodynamic dataset with uncertainties and correlations: The system K2O – Na2O – CaO – MgO – MnO – FeO – Fe2O3 – Al2O3 -TiO2 – SiO2 – C – H2 – O2. Journal of Metamorphic Geology. 8 P89 – P124, 1990.
Holland, T., and Blundy, J. Non-ideal interactions in calcic amphiboles and their bearing on amphibole - plagioclase thermometry. Contributions to Mineralogy and Petrology. 116 P433 - P447, 1994.
Krogh E J. The garnet-clinopyroxene Fe-Mg geothermometer are interpretation of existing experimental data. Contributions to Mineralogy and Petrology. 99 P44 - P48, 1988.
Leake, B.E., Woolley, A.R., Arps, C.E.S., Birch, W.D., Gilbert, M.C., Grice, J.D., Hawthorne, F.C., Kato, A., Kisch, H.J., Krivovichev, V.G., Linthout, K., Laird, J., Mandarino, J.A., Maresch, W.V., Nickel, E.H., Rock, N.M.S., Schumacher, J.C., Smith, D.C., Stephenson, N.C.N., Ungaretti, L., Whittaker, E.J.W., and Youzhi, G. Nomenclatu-re of amphiboles: Report of the Subcommittee on Amphiboles of the International Mineralogical Association, Commission on New Minerals and Mineral Names. American Mineralogist. 82 P1019 - P1037, 1997.
Mori T and Green D H. Laboratory duplication of phase equilibria observed in natural garnet Iherzolites. Journal of Geology. 86 P87 - P97, 1978.
Nakamura, D. & Banno, S. Thermodynamic modeling of sodic pyroxene solid solution and its application in a garnet - omphacite - kyanite coesite geothermobarometer for UHP metamorphic rocks. Contrib- utions to Mineralogy and Petrology. 130 P93 - P102, 1997.
Powell R. Regression diagnostics and robust regression in geotherometer / geobarometer calibration：the garnet – clinopyroxene geothermometer revisited. Journal of Metamorphic Geology. 2 P33 - P42, 1985.
Raheim A and Green D H. Experimental determination of the temperature and pressure dependence of the Fe-Mg partition coefficient for coexistingclinopyroxene and garnet. Contributions to Mineralogy and Petrology. 48 P179 - P203, 1974.
Ravna E K. The garnet-clinopyroxene Fe2 + -Mg geothermomter：an updated calibration. Journal of Metamorphic Geology. 18 P211 - P 219, 2000.
Ravna, E. J. K. & Terry, M. P. Geothermobarometry of phengite - kyanite - quartz/coesite eclogites. Eleventh Annual V. M. Goldschmidt Conference, abstract, 3145, 2001.
Ravna E J and Terry M P. Geothermobarometry of UHP and HP eclogites and schists - an evaluation of equilibria among garnet -clinopyroxene-
Kyanite - phengite - coesite / quartz. 22 P579 - P592, 2004.
Schmidt, M. W. Amphibole composition in tonalite as a function of pressure: An experimental calibration of the Al-in-hornblende barometer: Contributions to Mineralogy and Petrology. 110 P 304 - P310, 1992
Schmidt, M. W.. Phase relations and compositions in tonalite as a function of pressure: an experimental study at 650 °C. Amer J Science. 293 P1011- P1060, 1993.
Sharp, Z. D., Essene, E. J. and Smyth, J. R. Ultra-high temperatures and pressures from oxygen isotope thermometry of a coesite- sanidine grospydite. Contributions to Mineralogy and Petrology. 112 P358 - P370, 1992.
Song S G,Yang J S,Xu Z Q,et al.Metamorphic evolution of the coesite – bearing ultrahigh-pressure terrane in the North Qaidam, North Tibet, NW China. Journal Metamorphic Geology. 21 P631 - P644, 2003.
Song Shuguang, Lifeizhang, Niu Yaoling, Lisu, Song Biao and Dunyi Liu. Evolution from Oceanic Subduction to Continental Collision: a Case Study from the Northern Tibetan Plateau Based on Geochemical and Geochronological Data. Journal of Petrology. 47(3) P435 - P455, 2006.
Waters, D. J. & Martin, H. N. Geobarometry of phengitebearing eclogites. Terra Abstracts. 5 P410 - P411, 1993.
Waters, D. J. & Martin, H. N. The Garnet-Cpx-Phengite Barometer. Reco-mmended calibration and calculation method,updated 1 March 1996.
http://www.earth.ox.ac.uk/~davewa/research/eclogites/ecbarcal.html .
Yang, J. S., Xu, Z. Q., Song, S. G., Zhang, J. X., Wu, C. L., Shi R. D., Li, H. B., and Brunel, M. Discovery of coesite in the North Qaidam Early Palaeozoic ultrahigh pressure (UHP) metamorphic belt, NW China. Earth Planet. Sci. Lett. 333 P719 - P724, 2001.
Zhang Jinxin, Mattinson Cheristopher G., Meng Fancong, Wan Yusheng, Tung Kuoan. Polyphase tectonothermal history recorded in granulitized gneisses from the north Qaidam HP/UHP metamorphic terrane, western China: Evidence from zircon U-Pb geochronology. Geological Society of America . 120(5/6) P732 - P749, 2008.