Fr. 47.90

Obzor proishozhdeniq i rasprostranennosti mineralizacii 3Ts w Ruande - DE

Russian · Paperback / Softback

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Ruanda geologicheski raspolozhena w poqse Karagwe-Ankole, w centre Vostochnoj Afriki. Poqs Karagwe-Ankole (KAB) otdelen ot poqsa Kibaran (KIB) paleoproterozojskim Rusizijskim terrejnom, i oba oni obrazuüt mezoproterozojskie orogennye poqsa Central'noj Afriki. Chast' KAB, raspolozhennaq w Ruande, soderzhit osnownuü massu kassiterita, kolumbit-tantalita i wol'framita. Jeti rudnye mineraly poluchili nazwanie 3Ts i wstrechaütsq w Nb-Ta-Sn pegmatitah, W-Sn gidrotermal'nyh kwarcewyh zhilah i Sn grejzenah, kotorye qwlqütsq komponentami odnoj sostawnoj metallogenicheskoj sistemy, swqzannoj s generaciej granitow (G4-granit ili plodorodnyj granit), proizoshedshej 986±10 mln let nazad. Sostaw gidrotermal'nogo flüida - H2O-CO2-CH4-N2-NaCl, on harakterizuetsq nizkoj ili umerennoj solenost'ü (2,7-14,2 äkw. mass. %NaCl), wysokim dawleniem (~100 MPa) i mezotermicheskoj temperaturoj (~300°C). Izotopnyj sostaw flüidow pokazal, chto mineralizowannye kwarcewye zhily, skoree wsego, obrazowalis' iz flüidow, podwergshihsq w osnownom metamorficheskim processam. Kniga obqzana kratkomu opisaniü sowremennogo sostoqniq predstawlenij o mineralizacii mineralow 3Ts w Ruande.

Product details

Authors A. T. Bolarinwa, F. V. Ngimaciq Dongmo, Zhan de D'e Ndikumana
Publisher Sciencia Scripts
 
Languages Russian
Product format Paperback / Softback
Released 26.07.2024
 
EAN 9786207855742
ISBN 9786207855742
No. of pages 52
Subject Natural sciences, medicine, IT, technology > Geosciences > Geology

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