According to the temporal and spatial distribution of Pb-Zn deposits, we conclude that a multi-period, multi-cycle orogenic environment is the most favorable for lead-zinc deposit growth, that the Proterozoic is …
The Buziwannan gold-polymetallic deposit is located in Northwest China's West Kunlun Orogen Belt (WKOB). There are two metallogenic stages that have been …
Types, features, and prospecting potential for Mesozoic metal ore deposits in Zhejiang Province, southeast China. Qingdong ... geotectogene belt, whose boundary is the Yuyao–Lishui fault. The corresponding metallogenic belts are the Mo–Au(–Pb–Zn–Cu) metallogenic belt in northwest Zhejiang, the Chencai–Suichang …
The 26 Au–Cu–Pb–Zn orebodies in the ore district occur in the rhyolite porphyry and Ashele Formation tuff beneath the rhyolite porphyry (Fig. 3 a). The L1 orebody is the largest, with a length of 490 m and a thickness of 0.69–81.00 m, and it extends downward to a depth of 485 m. ... Geological characteristics and prospecting direction ...
Co, Ni, and Se enrichment in porphyry- and proximal skarn-type pyrite suggests they formed at relatively high temperature, whereas the colloform pyrite shows trace element contents (Cu, Pb, Zn, Ag, and Bi) similar to those in distal skarn pyrite, suggesting that they may have formed in the same fluid environment.
The Zn–Pb(–Ag) type, exploited at the Lanzi mine, is not associated with mafic rocks; the Cu–Fe type is strictly associated with the intruded mafic porphyry masses (and plays a key role in the interpretation process of the presented study), and the Zn–Pb(–Ag) type only occurs associated with the Cu–Fe type ore and the mafic …
The Devonian sequences in the Chinese Altay are highly fertile of base metal deposits, notably the giant Ashele Cu-Zn, Keketale Pb-Zn and Mengku Fe deposits (Wang et al., 1998; Wan et al., 2010a, Wan et al., 2010b), and the Abagong polymetallic belt (Zhang et al., 2012; Zheng et al., 2012).These Devonian sequences comprise mainly …
Gold mineralization is hosted in a variety of geological settings, from oceanic arcs to orogenic belts including their forelands and back-arc basins, as well as in alluvial (placer) sediments (Sillitoe 2020; Table 1 and …
The alteration formed by the reaction of ore-bearing fluid and wall rock is often used as an important prospecting indicator, resulting in the dilution or enrichment of metals or related trace elements. A variety of rock-forming and metallogenic elements have been analyzed in regional stream sediments so that the relationship between the ore …
Pb-, Zn-, and Cu-bearing particles were observed in the soil samples over the studied gold deposit. Figure 5 a shows a Pb-and Zn-bearing particle aggregation, approximately 50-100 nm in size and ...
Liaodong Peninsula is an important gold resource base in China, forming a giant gold-rich polymetallic ore concentration area with Jiaodong peninsula and Pyongyang gold deposits in Korea (Fig. 1).According to the spatial distribution of gold-rich polymetallic ore deposits, the Liaodong Peninsula can be divided into two parts: western region (e.g., …
6 Citations. 12 Altmetric. 2 Mentions. Explore all metrics. Abstract. Transmission-based muography (TM) is an innovative imaging technique based on the …
The highest sample result was 84.8 g/t gold which averaged 68.5 g/t over four assays. Twenty samples returned values in excess of 0.1 g/t gold, with twelve returning …
Samples generated results of 387 g/t Ag, 5.0% Pb, 1.6% Zn, 2.4% Cu, 0.38% Sb, and 0.52 g/t Au, from seven rock chips sampled (Table 1). Sample R06926 was …
The Cu–Pb–Zn skarn mineralization has also been found in the northwestern section of the Wulonggou gold ore field. It is proposed that Cu–Pb–Zn skarn mineralization is coeval with gold mineralization, which both are controlled by NW-trending structures (Guo et al., 2018).
Analysis revealed that the geobotanical method of prospecting for Pb-Zn-Cu-Ba mineralization in the area is promising as biogeochemical data indicated that the Dichrostachys cinerea are good ...
We recognize seven types of Cu–Au deposits in the Xinjiang Central Asian Orogenic Belt (XCAOB): volcanogenic, porphyry, iron oxide–copper–gold (IOCG), …
Superimposed W and Ag-Pb-Zn (-Cu-Au) mineralization and deep prospecting: Insight from a geophysical investigation of the Yinkeng orefield, South China ... thus providing useful information for the exploration of orogenic gold deposits and magmatic copper-nickel deposits (Sorjonen-Ward et al., 2002). In China, comprehensive …
Abstract Stratabound ore has been recognized as an end-member of porphyry copper systems, but pyrite chemistry has not been widely applied to linking stratabound ore with the related porphyry and skarn system. Stratabound ore is commonly developed around porphyry-skarn systems in eastern China, and is characterized by abundant colloform …
There are giant gold deposits such as Muruntau,Kumtor and Kalmakyr,world-class copper deposits such as Kalmakyr and Dal′neye,and super-large zinc-lead deposits such as Tekeli in western Tianshan forming agiant Au-Cu-Zn-Pb metallogenic belt,attracting the attention from the world.Yet it is hoped to find gold,copper and zinc-lead deposits significantly in …
ore, whereas As, Sb, Pb, Ag, and Bi are enriched in pyrite in distal stratabound ore, which extends for 1–2 km away from the intrusion. A plot of As/Se vs. Co discriminates the three ore types that occur associated with porphyry-skarn Cu systems in the Middle and Lower Yangtze belt (MLYB). These
The Langshan district is one of the most important Cu-Pb-Zn polymetallic ore belts in northern China and hosts several large or giant deposits, including the Huogeqi Cu-Pb-Zn, the Dongshengmiao Zn-Pb ... It has been debated for decades whether orogenic-type ore-forming systems are gold-only (Goldfarb et al., 2005, Phillips and Powell, 2010) ...
This study proposes to carry out systematic research on the composition of trace elements of sphalerite at different stages in the Daliangzi Pb-Zn deposit to find out their distribution characteristics and reveal their occurrence state, use GGMIF is a geothermometer to estimate the ore-forming temperature of the deposit at different …
Geogas-carried metal prospecting, an integral part of deep-penetrating geochemistry, is potentially effective in the geochemical exploration of concealed ore deposits. However, its principles and …
For prospecting and exploration IP (induced polarization), EM and resistivity, are important geophysical methods to use, together with SP (self-potential). ... (Cu, Zn, Pb ± Au, Ag) or Ni-Cu (±Co) in mafic rock; Gold deposits related to high-grade pyrrhotite or pyrite mineralization. Mapping depth to a bedrock unit; Mapping bedrock type and ...
Based on this, an ore-forming model of the deposit has been established, and it is believed that the ore district has potential for deep prospecting of Cu, Pb, Zn, and other metal resources.
the potential to ore prospecting of Zn and Fe isotopes on a broad spatial scale. ... Zn–Pb–Cu ore deposits thought to be of Proterozoic age (Ding and Jiang 2000;Lietal.2007). The Zhaertai Group in ... several large …
Space diagram of 1:10000 Pb-Zn-Ag geochemical anomaly of the east ore block in Daletingchagan Deep geophysical profile survey shows that there is a body with low resistivity, high polarization and ...
PDF | On Dec 1, 2023, Hao Cui and others published Determining the ore-forming processes of Dongshengmiao Zn-Pb-Cu deposit: Evidence from the linear discriminant analysis of pyrite geochemistry ...
Haobugao Pb–Zn–Cu–Fe-Sn deposit. The Haobugao deposit, located 120 km northeast of Lindong town, Chifeng city, Inner Mongolia, is a large size Fe–Cu–Pb–Zn polymetallic deposit (Table 1).The stratigraphic units exposed in the area are mainly composed of the Permian Dashizhai Formation and the Jurassic Manketouebo …
Co, Ni, and Se enrichment in porphyry- and proximal skarn-type pyrite suggests they formed at relatively high temperature, whereas the colloform pyrite shows trace element contents (Cu, Pb, Zn, Ag ...
Porphyry Cu–Au–Mo–epithermal Ag–Pb–Zn–distal hydrothermal Au deposits in the Dexing area, Jiangxi province, East China—A linked ore system ... The most prominent features of orogenic-type gold deposits are ore-forming fluids enriched in CO2 and 18O, low- to mediumsalinity, and a temperature range from 250 to 350 °C (Goldfarb et ...
