Metallogy Of The Zeravshano-Alay Belt (South Tianshan)

Аннотация

The work describes the genetic types and conditions for the localization of mineralization - individual deposits and ore occurrences. Also, the indicated mineralized zones, the conditions of occurrence of the mineralization, the geological-structural position and the peculiarities of the host complexes. Descriptions of promising tungsten, tin ore, polymetallic, mercury and other ore zones, which serve as a reserve in expanding the resource base in the Republic, are given. Tungsten, tin ore, and mercury mineralizations are characterized in somewhat more detail, since the latter in the region under study is often spatially associated with gold and forms mercury-antimony-polymetallic mineralization. KEYWORDS conditions of formation, patterns of distribution, exocontact of stocks and dikes, gold ore, tungsten, tin ore, mercury, antimony and rare metal deposits, pyritized, silicified, pyrrhotite, tin minerals (cassiterite, stanin, tillite), galena, sphalerite, chalcite , molebdinit. INTRODUCTION large team of geologists - production (Goskomgeologii, Navoi and Almalyk MMC) At present, Western Uzbekistan is considered and scientific institutions (Institute of Geology one of the most promising for gold, silver, and Geophysics of the Academy of Sciences of tungsten, tin, mercury, antimony, lead-zinc, Uzbekistan, Institute of Mineral Resources, uranium and other minerals in the Central etc.), numerous deposits and ore occurrences Asian ore province. As a result of the work of a have been explored: pegmatite-rare-metal (Ketmenchi, Zirabulok, Kutchi ); pegmatite- The US A Journals Volume 02 Issue 12-2020 44 The American Journal of Applied Sciences IMPACT FACTOR (ISSN – 2689-0992) 2020: 5. 276 Published: December 27, 2020 | Pages: 44-49 Doi: https://doi.org/10.37547/tajas/Volume02Issue12-08 OCLC - 1121105553 quartz-feldspar (Mulla-Burkhan, Kyz-Kurgan, association is found in the Caucasus, etc.); greisen-rare metal (Sulu-Kyz, Tadyknaya, Transbaikalia, in the southern provinces of Kurai, Kara-mosque, Berkut); skarn-rare metal China and other regions. A certain paragenetic (Ingichka, Lyangar, Koitash, Yakhton, relationship is also noted between tin ore and Karatyube, Sarutau, Sautbay, Daray-tut, mercury-antimony mineralization. Uchmulla, Maizak, Yarmakchi, Guljan, Tym, RESULTS AND DISCUSSION Mulla-Burkhan, Buzgulgryada, Chuyun); skarn- tin-polymetallic (Kyz-Kurgan); skarn-lead- Metallogeny of gold antimony (Kaltasai); hydrothermal-gold-ore- metasomatic (Muruntau, Kokpatas, Tillatag, In the Zirabulak Mountains, gold Dilan, Korakutan, Granitnaya, Yangi Davon, mineralization is localized mainly among the Pistal, Azhibugut, etc.); hydrothermal tin ore limestones of the Sapenskaya suite of the (Kochkarly, Lapas, Karnab, Kermene, Lower-Middle Devonian, in the shales of the Changalli, Devonasai, Kalta, Temirkan, Altyaulskaya suite of the Middle-Upper Dzhilansay, Gaulinskoe, Karakuduk, Sukaiti, Ordovician, in the sandy-shale sediments of Chaidaroz, Tutak, Altyn-Kazgan); the Silurian, in the granites of the Karnab hydrothermal-copper metal (Miskan, intrusive massif. Atkamarsay); hydrothermal-mercury (Kazan- Gold ore objects are closely associated with Bulak, Altyaul, Vostok-I and II, Plot - I, dyke formations. The youngest formations Kurgancha, Dzhilga, Karasu (Malguzar), overlaid with gold mineralization are Kushkumbai (Tamdytau), Yubileinoe-1 granodiorite porphyries of the Karakutan (Kuldzhuktau), Tumshuk, Dzhalgiz (Beltau), complex. etc.) [1, 5, 7, 8, 10]. Gold-bearing areas - Taushan, Adylsay and METHOD OF WORK Yangikazgan areas, located in different parts Questions of geology, conditions of formation of the Kuldzhuktau gold-ore cluster, with a and patterns of distribution of mineralization certain convention can be identified with ore were covered in the works of many fields, since with all the similarities they are researchers [2, 3, 4, 6, 9]. Therefore, the quite different in their position relative to article describes only the genetic types and regional structures and manifestations of conditions for the localization of magmatism, as well as in details their internal mineralization - individual deposits and ore structure. Each ore field is represented by the occurrences. well-studied reference objects Taushan, Yangikazgan and Adylsay, elongated relative Among the known ore occurrences of the to each other from the northwest to the region, gold, tungsten, tin ore, mercury, southeast of the Kuldzhuktau mountains. antimony and rare-metal deposits are of the greatest practical interest. Taushanskoe ore field (RP) includes one deposit (Taushanskoe), a number of ore Below, we will dwell in more detail on the occurrences (Potential, Perevalnoe, characteristics of the manifestations of Elektricheskoe, Geochemical) and mineralized tungsten mineralization, since the latter in the points with different gold contents. In terms region under study is often spatially of its position, the ore field is confined to the associated with gold