Инд. авторы:	Sorokin A.A, Kadashnikova A.Y., Ponomarchuk A.V., Travin A.V., Ponomarchuk V.A.
Заглавие:	Age and Genesis of the Pokrovskoe Gold-Silver Deposit (Russian Far East)
Библ. ссылка:	Sorokin A.A, Kadashnikova A.Y., Ponomarchuk A.V., Travin A.V., Ponomarchuk V.A. Age and Genesis of the Pokrovskoe Gold-Silver Deposit (Russian Far East) // Russian Geology and Geophysics. - 2021. - Vol.62. - Iss. 1. - P.134-143. - ISSN 1068-7971. - EISSN 1878-030X.
Внешние системы:	DOI: 10.2113/RGG20194009; WoS: 000611533000009;
Реферат:	eng: We present results of geochronological studies of rocks from different igneous complexes and of hydrothermally altered volcanics with Au-Ag mineralization from the Pokrovskoe deposit. The age of the ore-hosting granites of the Sergeevsky pluton of the Upper Amur complex is estimated at similar to 129 Ma. The primary age of dacites of a sill-like body is within 128-125 Ma and is close to the age of volcanics of the Taldan complex. Propylitization processes superposed on these dacites are dated at similar to 122-119 Ma. Taking into account the commercial contents of gold and silver in these rocks, we believe that the age of the hosted orebodies is in the same interval. The period 122-119 Ma is also the time of formation of the Gal'ka volcanic complex in the Umlekan volcanic zone, which was accompanied by granitoid magmatism. This suggests that the formation of the Pokrovskoe deposit was associated with the accumulation of the Gal'ka complex.
Ключевые слова:	Ar-Ar geochronology; Mesozoic; magmatism; MAGMATISM NORTHEASTERN PART; ARGUN TERRANE; METALLOGENIC ZONE; FOLD BELT; AMUR REGION; GONZHA BLOCK; WESTERN-PART; METAL DEPOSIT; AR-40/AR-39 AGE; NORTHERN MARGIN; Pokrovskoe deposit; Argun continental massif;
Издано:	2021
Физ. характеристика:	с.134-143