Modal Mineralogy of Cv3 Chondrites by Psd-xrd: Mineralogic Insights into a Complex Evolutionary History

نویسندگان

  • K. T. Howard
  • G. K. Benedix
  • P. A. Bland
چکیده

COMPLEX EVOLUTIONARY HISTORY. K. T. Howard, G. K. Benedix, P. A. Bland and G. Cressey. Impacts and Astromaterials Research Centre (IARC), The Natural History Museum, Mineralogy Department, London, SW7 5BD, United Kingdom. IARC, Dept. of Earth Sci. & Eng., Imperial College, London, SW7 2AZ, United Kingdom. 3 The Natural History Museum, Mineralogy Department, London, SW7 5BD, United Kingdom. E-mail: [email protected]

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Psd-xrd Modal Mineralogy of Cm Chondrites Spanning the Complete Petrographic Range

Introduction: CM carbonaceous chondrites are samples of incompletely serpentinized fragments of primitive asteroids. These meteorites preserve a record of nebular and parent body processes. CMs are composed predominantly of high temperature anhydrous phases and low temperature serpentine family phyllosilicates. Modal data allows for a greater understanding of CM petrogenesis and for characteriz...

متن کامل

Khatyrka, a new CV3 find from the Koryak Mountains, Eastern Russia

A new meteorite find, named Khatyrka, was recovered from eastern Siberia as a result of a search for naturally occurring quasicrystals. The meteorite occurs as clastic grains within postglacial clay-rich layers along the banks of a small stream in the Koryak Mountains, Chukotka Autonomous Okrug of far eastern Russia. Some of the grains are clearly chondritic and contain Type IA porphyritic oliv...

متن کامل

Testing variations within the Tagish Lake meteorite—I: Mineralogy and petrology of pristine samples

Four samples (TL5b, TL11h, TL11i, and TL11v) from the pristine collection of the Tagish Lake meteorite, an ungrouped C2 chondrite, were studied to characterize and understand its alteration history using EPMA, XRD, and TEM. We determined that samples TL11h and TL11i have a relatively smaller proportion of amorphous silicate material than sample TL5b, which experienced low-temperature hydrous pa...

متن کامل

Mineralogic and O-isotope evolution in CM chondrites: on the non-relationship between bulk O-isotopes and degree of aqueous alteration

RELATIONSHIP BETWEEN BULK O-ISOTOPES AND DEGREE OF AQUEOUS ALTERATION. K. T. Howard, G. K. Benedix, P. A. Bland, J. Gibson, R.C. Greenwood, I.A. Franchi and G. Cressey. Impacts and Astromaterials Research Centre (IARC), The Natural History Museum, Mineralogy Department, London, SW7 5BD, UK. IARC, Dept. of Earth Sci. & Eng., Imperial College, London, SW7 2AZ, UK. Dept. Applied Geol., Curtin Univ...

متن کامل

Correlated Modal Mineralogy, Aqueous Alteration and Oxygen Isotope Com- Position of Cm Chondrites

POSITION OF CM CHONDRITES. K. T. Howard, G. K. Benedix, P. A. Bland, R.C. Greenwood, I.A. Franchi and G. Cressey. Impacts and Astromaterials Research Centre (IARC), The Natural History Museum, Mineralogy Department, London, SW7 5BD, United Kingdom. IARC, Dept. of Earth Sci. & Eng., Imperial College, London, SW7 2AZ, United Kingdom. 3 Planetary and Space Science Research Institute (PSSRI), Open ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2009