沉积型层控矿床

1、沉积型层控矿床 全区存在沉积型层控矿床的研究区主要有卡尔卡拉林，吉尔吉斯阿拉套，楚-伊犁，卡拉套地区。全区沉积型层控矿床地质时代有晚古生代寒武系（Cam），早古生代泥盆系（D），石炭系（C），中生代侏罗系（J），白垩系（K），新生代古近系（E）。全区沉积型层控矿床矿物组合有三水铝矿, 赤铁矿, 高岭石，磁铁矿，钒云母，石英，磷灰石，硬水铝石，沥青铀矿，铀石，矾土。全区围岩蚀变类型有硅化作用，绢云母化，绿帘石化，氧化。主要矿物元素有Al，V，Fe，phosphorite。次要矿物元素有Mo, U, Ni, Zn。全区矿床规模以小型矿床为主，中、大、超大型矿床偏少。全区沉积型层控矿床类型主要有沉积

2、型层控铝矿床、铁矿床、磷矿床、铀矿床、钒矿床。 以下为该类矿床的详细分类。沉积型层控铝矿床岩石类型：。地质时代：古生代，中生代C1，D3，K1，T1，2，1-2主要矿石矿物：三水铝矿, 赤铁矿, 高岭石, 菱铁矿，硬水铝石，针铁矿，铝铬铁矿围岩蚀变：硅化化学元素标志主要矿物元素：Al 次要矿物元素：V，Fe，Ti，P矿床规模：小型与中型矿床构造带：Andyghen-Kichikalay，Dekhkanabad，Emba，Farghona-Isfara-Osh，Kughitang，Mughodjar East，Muzkol，Sarez，Torgay Central，Torgay North，To

3、rgay South，Torgay West，Urmetan，Zauralsk，Zhaman-Sarysu构造分区：Kairaqty，Kempirsai，Northern，Southern，Stepnyak East，Tashkumyr，Troitsk，Yagnob，Zhaman-Sarysu包含研究区域：杰孜卡兹甘，卡拉套，吉尔吉斯阿拉套，卡尔卡拉林品位吨位模型：沉积型层控铝矿床吨位模型沉积型层控铝矿床品位模型ID1733NameKrasnooktyabrskoeRussian nameCountryKAZAKHSTANMajor CommodityAlDeposit_TypeSedimen

4、tary stratiformDeposit SizeLarge and very largeAdministrative districtQostanay OblysyGeological settings and rocksThe deposit is located in the western flank of Turgai depression, in the Western Turgai bauxite basin. The area is composed of dislocated Lower Carboniferous rocks (limestone, andesite p

5、orphyrite, tuffite) overlined with flat sandy-clay MZ-CZ deposits. Preore Paleozoic basement was intruded with small diorite and plagiogranite-porphyry bodies. The basement surface is complicated by faults, as well as by karst and erosion-karst depressions filled with bauxite-bearing deposits varied

6、 in shape and in size. The bauxite-bearing deposits form two members, lower one composed of variegated clay and upper one, including stone, loose, aclayey bauxites.Geological ageMZ-CZTectonic ZoneTorgay CentralWallrock alterationsideritizationOrebody morphology26 ore bodies are groupped at 2 sites,

7、Northern (17) and Southern (9). Ores were formed through resedemintation laterite weathering crust tocarst depressions.Major mineralsgibbsite, hydrohematite, hematite, kaolin, sideriteMinor mineralschlorite, pyrite,corundum, calciteGradeA12O3 41.8-49.8 %; SiO2 5.2-14.0 %; Fe2O3 7.2-24.2 %TonnageRes.

8、 Are more than 120 MtID1773NameKlochkovskoeRussian nameCountryKAZAKHSTANMajor CommodityAl?CuDeposit_TypeSedimentary stratiformDeposit SizeMediumAdministrative districtQostanay OblysyGeological settings and rocksKlochkovskoe is confined to the western contact of the South-Adaevsky intrusive massif, f

9、ormed mainly by quartz porphyraceous diorites, diorite porphyrites and granodiorites. The inclosing rocks are represented by volcanic-sedimentary formations of the Upper Middle Vise. Residuums of an average thickness of 40 m are developed over the infolded basement rocks; they are overlapped by sand

10、y-clayey sediments of the Neogene-Quaternary up to 20 m thick. Tectonic ZoneTorgay CentralWallrock alterationAll varieties of intrusive rocks have undergone significant hydrothermal alterations, expressed by silicification, sericitization and epidotization which confine the most intense sulphide min

11、eralization. Orebody morphologyAs a result of exploration drilling at 400 x200 m grid, 74 - 94 m thick mineralization with a copper grade of 0.3 to 0.74% and gold grade of 0.1-0.2 g/t was detected. The mineralization is localized both in the intrusive rocks of the Paleozoic basement (primary ores) a

12、nd in the products of their weathering (oxidized). Primary ores are traced with the holes to a depth of 226 m, oxidized to 30 m. The mineralization in the residuum is richer than in the bed rock, according to commercial components grade. 2800 .2, 31,5 , 86 .3, 2,2/3 190 . 0,35% 665 . 3, 6, 7, 9 11.

13、, 0,1 %, 14 184 82,4 .Major mineralsGibbsiteGradeCu - 0.1-1.28 %, av.Cu - 0.21 %. TonnageCopper potential resources are estimated at 0.825 Mt, and gold resources at about 15 tons. , , 1200 . 2. , , , 2,6 /3 : 260 . , 550 . . 0,15 / 40 .Tectoning settingThe southern part of Valeryanovskaya zone ID185

14、3NameKirovskoeRussian nameCountryKAZAKHSTANMajor CommodityAl, TiDeposit_TypeSedimentary stratiformDeposit SizeLarge and very largeAdministrative districtAqtobe OblysyGeological settings and rocksThe weathering crust 10-15 m thick occurs on the basement rocks: shale (O) intruded bygabbro-amphibolite,

15、 diabase, porphyrite (C). Cretaceous continental deposits include 2 members: the lower one 15-20 m thick composed of feldspar-quartz sand with some pebble in the bottom and the uppeer member up to 35 m thick - variegated bauxite clay and bauxite, turning down the slope into coaly clay with coal and

16、bauxite lenses.Geological ageK1Tectonic ZoneTorgay WestWallrock alterationsideritizationOrebody morphologyThe weathering crust 10-15 m thick - minimal thickness is at the rises and maximal - at the depressions of pre-aptian relif.Major mineralsgibbsite, siderite, kaoliniteMinor mineralsboehmiteGrade

17、(stone bauxite) SiO2 7.8%; l203 38.4 %; Fe203 17.2 % ; (soft) SiO2 11.8 %; l203 39.6 %; Fe203 8.6 %, (clay-like): SiO2 9.9 %; l203 36.8 %; Fe203 16.9 %沉积型层控铁矿床 岩石类型：地质时代：中生代，新生代E3，J，K2矿体形态：菱铁矿，含铁绿泥石，含水针铁矿，赤铁矿, 磁铁矿, 假象赤铁矿, 石英, 氯酸盐, 方解石围岩蚀变：氧化，卡瓦克化学元素标志主要矿物元素：Fe, Mn 次要矿物元素：V，Cu, Co矿床规模：小型矿床构造带：Torgay

18、Central，Naryn，Teniz，Farghona North，Mangyshlak，Emba构造分区：Kavak，Tashkumyr，Northern，Kempirsai品位吨位模型：沉积型层控铁矿床品位模型ID857NameKurmentyRussian nameCountryKYRGYZSTANMajor CommodityFeDeposit_TypeSedimentary stratiformDeposit SizeMediumAdministrative districtNaryn OblysyGeological settings and rocksHost rocks: s

19、chist of Jetym formation (V)Tectonic ZoneNarynTectonic subzoneKavakWallrock alterationKavakOrebody morphologyLenses form a ore-bearing horizon 3.5 km long varied in thickness from 100 m in the east and west to 300 400 m in the cental parts. Ore bodies vary from 0.5 km to 2 km in length and from 2 m

20、to 26 m in thickness (total 50-70 m)Major mineralshaematite, magnetiteMinor mineralschlorite, quartzGradeFe 20 %, (CaO + MgO) 1.3-6.0 %, P2O5 0.05-0.75 %, SO3 0.02-0.65 %.TonnageFe 56 MtID1711NameAyatskoeRussian nameCountryKAZAKHSTANMajor CommodityFeMinor CommodityVDeposit_TypeSedimentary stratiform

21、Deposit SizeLarge and very largeAdministrative districtQostanay OblysyGeological settings and rocksLeptochlorite-siderite ore horizon overlays quartz-glauconite sand (K2cn) rare Pz rocks and their weathering crust. It is overlayed by lignite clay (K2cm-ma), as well as, by sand-clay deposits (E-Q)Geo

22、logical ageK2Tectonic ZoneTorgay CentralTectonic subzoneWallrock alterationoxidationOrebody morphologySubhorizontal beds 2-9 m thick of oolitic ores and concretional siderite ores (2500 sq.km area) form 13 ore bodies, in some places - oxidized and redeposited enriched oolitic oresMajor mineralssider

23、ite, ferriferous chlorite, hydrogoethiteMinor mineralscalcite, quartz, clay minelals, gipsumGradeFe - 37.1 %, FeO 13,8%, Mn - 0.5-5 %, TiO2 - 0.1-0.42 %, V2O5 - 0.05-0.13 %, NiO - to 0.01 %TonnageRes. Total - 11,600 Mt including (+1) 1,755.450 Mt, (2) 5,188.1 Mt, off-balance - 3,209.210 Mt沉积型层控磷矿床地质

24、时代：古生代，新生代。Cam，E1-2，K，O3-S1围岩蚀变：接触变形，碳酸盐化化学元素标志主要矿物元素： P 次要矿物元素：F, REE, V, Co, Ni矿床规模：小型矿床构造带：Chu-Sarysu，Dekhkanabad，Emba，Gissar South ，Karoi，Kholzun-Chuisk，Kyzylkum，Mangyshlak，Nuratau-Malguzar ，Pericaspian，Surkhandariya构造分区：Ardjanak，Bukhara，Kempirsai，Northern，Shakhrisab，Southern，Zhanatas实例： karatau

25、.pdf, geres.pdf，koksu.pdf，janatas.pdf,包含研究区域：卡拉套品位吨位模型：沉积型层控磷矿床品位模型ID914NameChulaktau-IRussian name-I CountryKAZAKHSTANMajor CommodityphosphoriteDeposit_TypeSedimentary stratiformDeposit SizeLarge and very largeAdministrative districtZhambul OblysyGeological settings and rocksThe deposit is located

26、in the SE par of Qaratau basinGeological ageCam2Tectonic ZoneKaroiTectonic subzoneZhanatasWallrock alterationmetamorphosisOrebody morphologyA phosphorite horizon 15-20 m thick includes 1-2 beds (3-10 m thick, 0.2 - 5 km long)Major mineralsapatiteTonnageRes. 6 MtID1222NameSherabad-IIRussian name-IICo

27、untryUzbekistanMajor CommodityphosphoriteDeposit_TypeSedimentary stratiformDeposit SizeSmallAdministrative districtSurxondaryo OblysyGeological settings and rocksThe deposit is related to the SE limb of the Kagny Anticline as a part of the Sherabad-Sarykamysh Uplift. The Sarykamysh Thrust Fault is t

28、he major tectonic line controlling the structure of the deposit. The deposit area is covered by Upper Cretaceous and Paleogene sediments. Quaternary sediments occur in the SE part of the deposit. The ore is hosted in the sulfate-carbonate unit of the Kachin Stage with frequent alternation of gypsum-anhydrite and carbonate (bituminous, dolomitic, organogenic, and breccia-like limestones) lenticular layers.Geological agePgTectonic ZoneSurkhandariyaWallrock alterationCarbonatizationOrebody morphologyThe Upper unit that inclu