沉積型層控礦床

1、沉積型層控礦床 全區(qū)存在沉積型層控礦床的研究區(qū)主要有卡爾卡拉林，吉爾吉斯阿拉套，楚-伊犁，卡拉套地區(qū)。全區(qū)沉積型層控礦床地質(zhì)時(shí)代有晚古生代寒武系（Cam），早古生代泥盆系（D），石炭系（C），中生代侏羅系（J），白堊系（K），新生代古近系（E）。全區(qū)沉積型層控礦床礦物組合有三水鋁礦, 赤鐵礦, 高嶺石，磁鐵礦，釩云母，石英，磷灰石，硬水鋁石，瀝青鈾礦，鈾石，礬土。全區(qū)圍巖蝕變類型有硅化作用，絹云母化，綠簾石化，氧化。主要礦物元素有Al，V，F(xiàn)e，phosphorite。次要礦物元素有Mo, U, Ni, Zn。全區(qū)礦床規(guī)模以小型礦床為主，中、大、超大型礦床偏少。全區(qū)沉積型層控礦床類型主要有沉積

2、型層控鋁礦床、鐵礦床、磷礦床、鈾礦床、釩礦床。 以下為該類礦床的詳細(xì)分類。沉積型層控鋁礦床巖石類型：。地質(zhì)時(shí)代：古生代，中生代C1，D3，K1，T1，2，1-2主要礦石礦物：三水鋁礦, 赤鐵礦, 高嶺石, 菱鐵礦，硬水鋁石，針鐵礦，鋁鉻鐵礦圍巖蝕變：硅化化學(xué)元素標(biāo)志主要礦物元素：Al 次要礦物元素：V，F(xiàn)e，Ti，P礦床規(guī)模：小型與中型礦床構(gòu)造帶：Andyghen-Kichikalay，Dekhkanabad，Emba，F(xiàn)arghona-Isfara-Osh，Kughitang，Mughodjar East，Muzkol，Sarez，Torgay Central，Torgay North，To

3、rgay South，Torgay West，Urmetan，Zauralsk，Zhaman-Sarysu構(gòu)造分區(qū)：Kairaqty，Kempirsai，Northern，Southern，Stepnyak East，Tashkumyr，Troitsk，Yagnob，Zhaman-Sarysu包含研究區(qū)域：杰孜卡茲甘，卡拉套，吉爾吉斯阿拉套，卡爾卡拉林品位噸位模型：沉積型層控鋁礦床噸位模型沉積型層控鋁礦床品位模型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 %沉積型層控鐵礦床 巖石類型：地質(zhì)時(shí)代：中生代，新生代E3，J，K2礦體形態(tài)：菱鐵礦，含鐵綠泥石，含水針鐵礦，赤鐵礦, 磁鐵礦, 假象赤鐵礦, 石英, 氯酸鹽, 方解石圍巖蝕變：氧化，卡瓦克化學(xué)元素標(biāo)志主要礦物元素：Fe, Mn 次要礦物元素：V，Cu, Co礦床規(guī)模：小型礦床構(gòu)造帶：Torgay

18、Central，Naryn，Teniz，F(xiàn)arghona North，Mangyshlak，Emba構(gòu)造分區(qū)：Kavak，Tashkumyr，Northern，Kempirsai品位噸位模型：沉積型層控鐵礦床品位模型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沉積型層控磷礦床地質(zhì)

24、時(shí)代：古生代，新生代。Cam，E1-2，K，O3-S1圍巖蝕變：接觸變形，碳酸鹽化化學(xué)元素標(biāo)志主要礦物元素： P 次要礦物元素：F, REE, V, Co, Ni礦床規(guī)模：小型礦床構(gòu)造帶：Chu-Sarysu，Dekhkanabad，Emba，Gissar South ，Karoi，Kholzun-Chuisk，Kyzylkum，Mangyshlak，Nuratau-Malguzar ，Pericaspian，Surkhandariya構(gòu)造分區(qū)：Ardjanak，Bukhara，Kempirsai，Northern，Shakhrisab，Southern，Zhanatas實(shí)例： karatau

25、.pdf, geres.pdf，koksu.pdf，janatas.pdf,包含研究區(qū)域：卡拉套品位噸位模型：沉積型層控磷礦床品位模型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