【正文】 成礦時(shí)代主要為泥盆紀(jì)火山沉積期和石炭紀(jì)火山熱液疊加期。含銅磁鐵礦礦石174。黃銅礦體以透鏡狀和似層狀為主。以喬夏哈拉鐵銅金礦床為例，喬夏哈拉式鐵銅金礦的主要內(nèi)容分別敘述如下。本文對(duì)喬夏哈拉式鐵銅金礦的主要內(nèi)容：描述性模式、成因模式和找礦評(píng)價(jià)模型進(jìn)行了具體闡述。亦可視為一種新的礦床自然分類。東礦段部分礦體含銅、鈷，伴生的鈷品位已達(dá)工業(yè)要求，%，%(1∶20萬(wàn)富蘊(yùn)幅，1978)。礦石構(gòu)造主要出現(xiàn)致密塊狀礦石，條帶狀磁鐵礦和浸染狀磁鐵礦；礦石結(jié)構(gòu)包括自形、半自形粒狀結(jié)構(gòu)，多邊形解理結(jié)構(gòu)、他形粒狀結(jié)構(gòu)和片狀結(jié)構(gòu)(1∶20萬(wàn)富蘊(yùn)幅，1978)。致密塊狀構(gòu)造的變化。其大地構(gòu)造位置為阿爾泰南緣和準(zhǔn)噶爾北緣的過(guò)渡地帶，額爾齊斯斷裂的南側(cè)，而不屬于阿爾泰造山帶。證明磁鐵礦的物質(zhì)來(lái)自火山噴氣，但在沉積成礦過(guò)程中摻入了大氣降水(李泰德，2002)。③圍巖蝕變：在鐵礦體的圍巖中往往形成綠簾石化矽卡巖，此為疊加改造最具代表性和最明顯的標(biāo)志。(3)地球物理標(biāo)志：①重力：?jiǎn)滔墓F銅金礦床重力異常以線性異常為主，形態(tài)多變，走向變化上分區(qū)明顯，與構(gòu)造線方向基本一致，屬于重力高值區(qū)。m。在古生代大規(guī)模成礦作用中，喬夏哈拉鐵銅金礦床與海相火山－巖漿作用或海底火山－噴流沉積作用大規(guī)模成礦作用關(guān)系最為密切。 mineral deposit type and mineral deposit (Chen Yuchuan et al., 2006). Mineral deposit is the basic unit at the fifth class, whereas mineral deposit type is one class higher than mineral deposit at the fourth. Each mineral deposit type can contain a describing pattern, minerogenetic pattern and prospectingevaluation model.2 Minerogenetic model of Qiaoxiahalatype FeCuAu depositsThe Qiaoxiahala FeCuAu deposit in Xinjiang is the typical one as Qiaoxiahalatype FeCuAu deposit. Taking it as an example, the main contents of this type can be concluded as following. Describing patternThe Qiaoxiahala FeCuAu deposit mainly produces magnetite and chalcopyrite hosted by basic marine volcanic rocks and the responding pyroclastic rocks with TFe at % and Cu at % at average and up to %. The No. III orebody in the eastern mining sector is with Cu at % at average and Au at , whereas No. I with Cu at .055% and Au at (Xinjiang Uygur Autonomous Region Geological Bureau, 1978). Magnetite orebodies mainly occurred in the western mining sector as the stratiformlike, phacoidal, lenticular, whereas chalcopyrite orebodies concentrated in the eastern mining sector labelled I~VII as stratiform and/or lenticular (Li Longqian, 2003). Ores included massive magnetite and chalcopyrite, banded epidote+magnetite, and disseminated pyrite+chalcopyrite+magnetite and chalcopyrite+magnetite. Ore structures appeared euhedral and subhedral granular, polygonal cleavage, anhdral granular and sheet texture.The Qiaoxiahala FeCuAu deposit located at the south side of the Ertix Fault at the margin of Altay Mountains hosted by Middle Devonian Beitashan Formation (D2b). The footwall rocks were basic volcanic rocks and pyroclastic rocks, whereas volcanic lava and the pyroclastic rocks were the hanging wall. Orebodies occurred as Fe174。 4)Junggar openclose system between continents→North Junggar Pz openclose belt→QiaoxiahalaA’ermantai ?O ocean crust relic (Chen Zhefu et al., 1997). Its present geotectonic location was in the transitional belt between Altay south margin and Junggar north margin, and also the southern side of Ertix Fault, but not the inside of Altay orogin belt. As far as the minerogenetic material concerned, Fe came from the same magmatic source as the basic volcanic lava related to the marine volcanism, Cu mainly sourced from later hydrotherm and a little from the basic volcanic lava, whereas Au was mainly provided by the later hydrotherm related to the diorite intrusion.On geochemistry of sulfur isotopes, d34S of pyrite changed from +‰ to +‰, +‰ at averag