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We هي شركة ذات تقنية عالية تدمج البحث والتطوير والإنتاج والتوزيع ، وتوفر كسارة ، وصنع الرمال ، ومعدات طحن ، ومحطة تكسير متنقلة ، إلخ.
We هي شركة ذات تقنية عالية تدمج البحث والتطوير والإنتاج والتوزيع ، وتوفر كسارة ، وصنع الرمال ، ومعدات طحن ، ومحطة تكسير متنقلة ، إلخ.
2023103 Typical mineral symbiotic associations in disseminated ore (a), banded ore (b), and massive ore (c) from Bayan Obo Figure 5. Major elements box plots of the slates (a), different types of ore (b) and ore-bearing dolomite (c) from the Bayan Obo REE-Nb احصل على السعر
201551 The structure of the ores is embedded, sideronitic, granular mosaic, and secondary metasomatic. The texture of the ores is mainly disseminated and massive, احصل على السعر
2021121 Textural and mineralogical analyses of disseminated ore, banded ore and massive ore were completed by the advanced mineral identification and characterization احصل على السعر
2020121 Dense massive ore (a,b), banded ore (c,d), ribbon ore (e,f), and banded–disseminated ore (g,h). We propose, therefore, that the structure of the main ore احصل على السعر
202351 There are three types of ore in the mining area: banded, disseminated, and massive ores. The banded ores were formed by interbedded magnetite, calcite, and احصل على السعر
2022221 Our studies showed the microstructural heterogeneity of grains of accessory chromian spinels and ore chromite in disseminated banded ores, which is احصل على السعر
2022914 The cumulus phase is observed only in the disseminated ore in all gabbroic varieties, with the highest modal percentage in pyroxene gabbro (10–15 vol%). احصل على السعر
Three general types of ores occur at Bayan Obo: disseminated, banded, and massive ores. Broad zoning of these ore types occurs in the Main and East Orebodies. Disseminated احصل على السعر
20191027 The ore and gangue minerals have massive, banded, disseminated, brecciated, vein–veinlets, replacement, and relict textures. EPMA data indicate that garnets have andradite–grossularite احصل على السعر
202366 Banded ore: (a) discontinuous bands in TAK21; (b) flow structure in TAK23; (c) continuous and discontinuous bands in TAK51; (d) bands of large or small magnetite احصل على السعر
2021221 The stone describes disseminated tabular, podiform massive, and transitional chromitite deposits from a mantle section of the Kraka ophiolite massif, South Urals, Russia. The chromitite is hosted by dunite with no correlation between their size and quality and the size of the dunite bodies. Thick dunite bodies mostly host disseminated احصل على السعر
202299 Sulfide ores constitute several superimposed ore bodies that formed two main sulfide-bearing sequences totally up to 40 m thick. Host rocks near the ore body underwent an intensive silicification.احصل على السعر
20231031 Ore structures include banded, dispersed, and vein structures, among others. Apart from these independent structure types, it frequently generates compound structures with many configurations, such as: Disseminated-banded-net vein-fine vein structure; As mineralisation has increased, metal minerals have a dispersed structure احصل على السعر
20191027 The ore and gangue minerals have massive, banded, disseminated, brecciated, vein–veinlets, replacement, and relict textures. EPMA data indicate that garnets have andradite–grossularite compositions (Ad 39.97–100 –Gr 0–49.62 ) and clinopyroxenes have diopsidic composition (En 29.43–42.5 –Fs 14.31–20.99 –Wo 43.08–50.17 ).احصل على السعر
9.3.1.1 Magmatic Sulfides and Cumulates. Mafic and ultramafic magmas, like all common magmas, contain the major elements oxygen, silicon, aluminum, iron, calcium, sodium, potassium, and magnesium. But they typically also contain other elements including sulfur, nickel, and less common metals such as platinum, palladium, and chromium.احصل على السعر
Ore textures in the Yunfu pyrite deposit can be classified into four types, including the banded, disseminated, massive and veiny. The specimens and microscopic observation show that banded ores suffered the subsequent crumpled structures, the massive ores are composed of two different particle sizes of pyrite, and the pyrite vein cut acrossاحصل على السعر
2021111 The BIFs are divided into two sub–types of the banded pyroxene–magnetite quartzite (BMQ) and the disseminated magnetite pyroxenite (DMP). 2. The protolith age of the hanging wall rock pyroxene biotite gneiss is 2406 ± 24 Ma, which constrain the lower limited ore–forming age of the Tieshanmiao BIF deposit.احصل على السعر
201411 Major disseminated and banded, minor brecciated, taxitic and veined: Pyrite, pyrrhotite, sphalerite, galena and chalcopyrite: Ore fluids bearing sulfur, originally present in seawater, and metals extracted from crustal rocks, were obtained from connate fluids or sulfates in sedimentary sources (Leach and Sangster, 1993).احصل على السعر
2017824 Other times the deposits are known using their acronyms (e.g., BIF means banded iron formation ores, MVT means Mississippi Valley-type lead-zinc ores, or SEDEX means sedimentary exhalative ore). In addition, the deposits may be called according to the rock type, like pegmatite (large crystals), porphyry copper (disseminated stockwork احصل على السعر
2022330 The mineral composition, occurrence, and Ce elemental deportment of the borehole ores at different depths (i.e., 1107 m, 1246 m, 1406 m, 1546 m, and 1682 m) were obtained. The results show that the main types of ores in the investigated samples can be divided into banded REE-Fe ores, banded REE ores, disseminated REE-Fe ores, and احصل على السعر
2018111 The Altyn Mountains are situated between the Tarim Basin and Qaidam Basin, and bordered with the latter along the regional Altyn Fault (Fig. 1).The Kaladawan South ore-field is located in the eastern part of the Altyn Mountains (Fig. 1 a, b).The area may have undergone at least five tectonic episodes (Wang et al., 2017): (1) Deposition of احصل على السعر
20191129 High-grade ore zones in low-sulfidation epithermal deposits are commonly associated with the occurrence of banded quartz veins. The ore minerals in these veins are heterogeneously distributed احصل على السعر
202131 The ore types include banded, disseminated, and massive ores. The metallogenic process can be divided into prograde skarn, retrograde skarn, oxide, quartz-sulfide, and carbonate stages. The metallic minerals include magnetite and pyrite, and the gangue minerals include olivine, garnet, hedenbergite, hornblende, actinolite, biotiteاحصل على السعر
202191 Section snip Global distribution, age and classification of BIFs. Banded iron formations (BIFs) or iron formations (IFs), as well as iron-rich chemical sedimentary rocks are referred as “exhalites” and mainly occurred during three metallogenic epochs of iron mineralization (James, 1954, Ridler, 1971, James and Trendall, 1982): Mid-Archean احصل على السعر
2022330 The TIMA false-colored mineral phase map of the 1107 m drill core sample. (a) the whole image of the polished thin section shows banded ore texture; (b) subhedral to anhedral monazite-(Ceاحصل على السعر
The early Cambrian Takab iron ore deposit is situated in the northern part of the Sanandaj-Sirjan zone, western Iran. It consists of banded, nodular and disseminated magnetite hosted in folded micaschists. Trace element and Fe and O isotopic experiments reveal various hydrothermal precipitation environments under reduced to slightly oxidizing conditions. احصل على السعر
CLASSIFICATION AND DISTRIBUTION OF ORE TYPES. There are three broad categories of ore types: disseminated, banded, and massive. The classification of Bayan Obo ores used in this report is based on the classification developed in the early 1960's, which was published by the Institute of Geochemistry (1988) and is, generally, the classification احصل على السعر
198381 The PKH deposit is located 240 m stratigraphically above the PKM ore body and crops out on top of the Pilot Knob Mountain (Fig. 2;Wracher, 1976; Panno and Hood, 1983).احصل على السعر
201551 Banded ore rich in pyrite, medium-fine grained automorphic pyrite occurred as banded or dense disseminated in the marble, coexisting with less sphalerite and galena: XCB-4: Level 850, line 57, ore in schist: Pyrite: Massive ore rich in pyrite, middle-coarse grained massive pyrite, coexisting with less pyrrhotite and arsenopyriteاحصل على السعر
202231 Dominated by disseminated and columnar-network ores (Fig. 3 f-g). The sphalerite is anhedral and fine-grained, dark brown and yellowish brown color and fills the gaps of early-forming magnetite and diopside (Fig. 4 b, g). Iron ore: Tunnel 3850 m (Fig. 2 b) Dominated by massive, densely disseminated, breccia and banded ores (Fig. 3 b-e).احصل على السعر
