Zhu Huang

Sinopec (China)

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Paul T. Robinson

China University of Geosciences

Jingsui Yang

Chinese Academy of Geological Sciences

Fahui Xiong

Ministry of Natural Resources

Zhongming Zhang

Qinghai University

Yazhou TIAN

University of Jinan

Yuzhen Fu

Chengdu University of Technology

Na Li

Qilu University of Technology

Qing Lei

Chengdu University of Technology

Yıldırım Dilek

Miami University

ZHU Yongwang

Inner Mongolia Electric Power Survey & Design Institute (China)

Cooperative Institutions

Chinese Academy of Geological Sciences

Chengdu University of Technology

Ministry of Natural Resources

China University of Geosciences (Beijing)

China University of Geosciences

State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation

Chinese Academy of Sciences

Kunming University of Science and Technology

Sichuan Agricultural University

Zhejiang University

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THE TECTONIC SIGNIFICANCE OF (OLD) ZIRCON IN OCEANIC MANTLE PERIDOTITES AND CHROMITITES

Abstracts with programs - Geological Society of America (2017)

Paul T. Robinson Jingsui Yang Jianwei Li Duan Zhang Yazhou TIAN

10.1130/abs/2017am-303844

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The Study of Deep Mineral Association in Chromitites of the Hegenshan Ophiolite, Inner Mongolia, China

Acta Geologica Sinica - English Edition (2015)

Zhu Huang Jingsui Yang ZHU Yongwang Fahui Xiong Zhao Liu

Previously reported in the Mesozonic Tibet and the early Paleozoic Polar Ural,Russia , diamond and other deep minerals are found in ophiolite mantle peridotite chromite that need to be reconsidered ophiolite and chromite traditional understanding of the causes of shallow.The ophiolitic chromitite can be divided two classes, the high-Cr chromitite and high-Al chromitite.Most of the early studies of chromitites in China focused on high-Cr varieties, particularly in Tibet and the Polar Urals, leaving unanswered the question of whether such minerals also occur in high-Al varieties.In order determine whether high-Al chromitites also contain diamonds and to investigate the formation processes of the Hegenshan podiform chromitites, we carry out the mineralogy in chromitites of the Hegenshan ophiolite, Inner Mongolia, China.The Hegenshan ophiolite lies in the Inner Mongolia-Daxinganling orogenic belt, a part of the Central Asian orogenic belt, including both the Altaids and Manchurides Approximately 2000 kg of mainly disseminated chromitite ore were collected from orebody 3756.Minerals were separated at the Institute of Multipurpose Utilization of Mineral Resources, Zhengzhou, China and the samples were handpicked under a binocular microscope.Mineral identifications are based on optical properties and Raman spectroscopy.Preliminary studies have identified more than 30 mineral species in addition to diamonds and moissanite.The other minerals include oxides (mostly

Inner mongolia

Mineral resource classification

Mineral exploration

Prospectivity mapping

10.1111/1755-6724.12308_21

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Factors affecting prefabricated construction promotion in China: A structural equation modeling approach

PLoS ONE (2020)

Wen Jiang Zhu Huang Ying Peng Yaqi Fang Yunzhong Cao

Prefabricated construction (PC) has attracted wide spread attention as a model of sustainable development for the construction industry of the future. Although the PC has many advantages, it is still at an initial stage in China. Based on the current conditions in China, this study focuses on the interrelationships of factors affecting PC promotion. Firstly, through a comprehensive review of relevant literatures and expert recommendations, 5 factors were identified: policy factor, technical factor, management factor, market factor and cost factor. Next, the data were collected through a questionnaire survey, and the questionnaire data were processed using SPSS 24.0 and AMOS 22.0. The overall relationships of each factor were quantitatively analyzed with Structural Equation Modeling (SEM). The results show that the policy factor plays a dominant role, while the management factor and market factors are also significant. This study also provides decision makers with relevant information about the factors involved, which will be helpful in devising appropriate strategies for the wider adoption of PC.

Promotion (chess)

Questionnaire

Factor (programming language)

Impact factor

10.1371/journal.pone.0227787

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The Discovery of Diamonds in Chromitites of the Hegenshan Ophiolite, Inner Mongolia, China

Acta Geologica Sinica - English Edition (2015)

Zhu Huang Jingsui Yang Paul T. Robinson ZHU Yongwang Fahui Xiong

Abstract Diamond, moissanite and a variety of other minerals, similar to those reported from ophiolites in Tibet and northern Russia, have recently been discovered in chromitites of the Hegenshan ophiolite of the Central Asian Orogenic Belt, north China. The chromitites are small, podiform and vein‐like bodies hosted in dunite, clinopyroxene‐bearing peridotite, troctolite and gabbro. All of the analysed chromite grains are relatively Al‐rich, with Cr # [100Cr/(Cr+Al)] of about 47–53. Preliminary studies of mainly disseminated chromitite from ore body No. 3756 have identified more than 30 mineral species in addition to diamond and moissanite. These include oxides (mostly hematite, magnetite, rutile, anatase, cassiterite, and quartz), sulfides (pyrite, marcasite and others), silicates (magnesian olivine, enstatite, augite, diopside, uvarovite, pyrope, orthoclase, zircon, sphene, vesuvianite, chlorite and serpentine) and others (e.g., calcite, monazite, glauberite, iowaite and a range of metallic alloys). This study demonstrates that diamond, moissanite and other exotic minerals can occur in high‐Al, as well as high‐Cr chromites, and significantly extends the geographic and age range of known diamond‐bearing ophiolites.

Chromite

Chromitite

10.1111/1755-6724.12434

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Petrology of Cr‐rich Podiform Chromitites of Bulqiza, Eastern Ophiolitic Belt, Albania

Acta Geologica Sinica - English Edition (2015)

Fahui Xiong Jingsui Yang Paul T. Robinson Yıldırım Dilek Ibrahim Milushi

10.1111/1755-6724.12308_57

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The Role of Hydrocarbons in the Genesis of Mississippi-Valley-Type (MVT) Zn–Pb Deposits: Insights from In Situ Sulfur Isotopes of Sphalerite from the Southwestern Margin of the Yangtze Block, SW China

Minerals (2024)

Guozhi Wang Zhu Huang Qing Lei Wei Xu

The coexistence of numerous Mississippi-Valley-type (MVT) Zn–Pb deposits and (paleo) oil/gas reservoirs in the world suggests a close genetic relationship between mineralization and hydrocarbon accumulation. Xuequ–Shandouya middle MVT Zn–Pb deposits are mainly hosted in the Lower Cambrian Maidiping Member siliceous dolostone on the southwestern margin of the Yangtze Block, accompanied by large amount of bitumen in the orebodies. Therefore, this type of Zn–Pb deposit is a natural laboratory for studying the relationship between the mineralization and the accumulation of paleo-oil/gas reservoirs. The deposit is characterized by spheroidal and concentric banded sphalerite. In situ sulfur isotope studies are carried out to determine the sulfur sources, sulfate reduction mechanisms, and role of hydrocarbons in the zinc–lead mineralization process. According to the mineral paragenesis and relative temporal relationship, two mineralization stages (1 and 2) are identified. An in situ sulfur isotope analysis of spheroidal and concentric banded sphalerite particles from Stage 2 shows that there are the two following types of sulfur isotopes in the sphalerite: one with relatively invariable δ34S values in the core (+8.31 to +9.30‰), and the other with a gradual increase from the core margin (core) to the rim (+0.39 to +16.18‰). These two types reflect that they may have formed in different times, with first type forming in the early period of Stage 2, while the second type was formed in the late period of Stage 2. The sulfur isotopic data suggest the sulfur source of evaporated sulfate minerals and multiple formation mechanisms for reduced sulfur (H2S). In the early period of Stage 2 mineralization, the sulfate reduction mechanism is mainly a mixture of bacterial sulfate reduction (BSR) and/or thermochemical sulfate reduction (TSR), while a very small amount may come from the thermal decomposition of organic compounds (DOCs). In the late period of Stage 2, TSR is dominant, and the gradual increase in the δ34S value may be related to Rayleigh fractionation. The oil/gasreservoir not only acts as a reducing agent to provide the required hydrogen sulfide for zinc–lead mineralization through TSR or BSR, but also provides reduced sulfur for mineralization through the thermal decomposition of organic compounds directly.

Margin (machine learning)

δ34S

10.3390/min14101009

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The relationship between hydrocarbon accumulation and Mississippi Valley‐type Pb‐Zn mineralization of the Mayuan metallogenic belt, the northern Yangtze block, SW China: Evidence from ore geology and Rb‐Sr isotopic dating

Resource Geology (2020)

Guozhi Wang Zhu Huang Fufeng Zhao Na Li Yuzhen Fu

Abstract The coexistence of Pb‐Zn deposits and oil/gas reservoirs demonstrates that a close genetic connection exists between them. The spatiotemporal relationship between Pb‐Zn mineralization and hydrocarbon accumulation is the key to understanding this genetic connection. The Mayuan large‐scale Pb‐Zn metallogenic belt is composed of a number of Mississippi Valley‐type (MVT) Pb‐Zn deposits that were recently discovered on the northern margin of the Yangtze Block, China. It is hosted in the dolostone of the Sinian (Ediacaran) Dengying Formation (Z 2 dn). In addition to the abundant bitumen in the Mayuan Pb‐Zn metallogenic belt, the paleo‐oil reservoir and the MVT Pb‐Zn deposit overlap in space. In this study, two precise ages of 468.3 ± 3.8 Ma and 206.0 ± 6.5 Ma were obtained via the Rb‐Sr isotopic dating of galena and sphalerite from the Mayuan Pb‐Zn metallogenic belt, respectively. The early metallogenic age of 468.3 ± 3.8 Ma is similar to the previously published age of 486 ± 12 Ma. The age of 206.0 ± 6.5 Ma is consistent with the age of the metallogenic event that occurred at 200 Ma in the Upper Yangtze Pb–Zn metallogenic province of the Sichuan‐Yunnan‐Guizhou polymetallic zone, which is located on the southwest margin of the Sichuan Basin, suggesting that the metallogenic effects of this period were regional in scale in the peripheral areas of the Sichuan Basin. Previous studies have shown that two periods of hydrocarbon accumulation occurred in the oil/gas reservoir that coexists with the Pb‐Zn deposits in the study area. The Pb‐Zn mineralization at 468.3 ± 3.8 Ma occurred during the first period of hydrocarbon accumulation, while the second mineralization at 206.0 ± 6.5 Ma occurred during the transformation of the paleo‐oil reservoir to a paleogas reservoir. The spatial relationship between the paleo‐oil/‐gas reservoir and the MVT Pb‐Zn deposits and the temporal relationship between mineralization and hydrocarbon accumulation show that a close genetic relationship exists between the MVT Pb‐Zn mineralization and hydrocarbon accumulation. Analysis of metals in the source rocks forming the paleo‐oil/‐gas reservoirs show that source rocks which formed paleo‐oil/‐gas reservoirs may have provided metals for Pb‐Zn mineralization. Both the paleo‐oil/‐gas reservoirs and Pb‐Zn mineralizing fluids had the same origin.

10.1111/rge.12229

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Genetic link between Mississippi Valley-Type (MVT) Zn-Pb mineralization and hydrocarbon accumulation in the Nanmushu, northern margin of Sichuan Basin, SW China

Geochemistry (2021)

Zhu Huang Guozhi Wang Na Li Yuzhen Fu Qing Lei

10.1016/j.chemer.2021.125805

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Petrology and geochemistry of high Cr# podiform chromitites of Bulqiza, Eastern Mirdita Ophiolite (EMO), Albania

Ore Geology Reviews (2015)

Fahui Xiong Jingsui Yang Paul T. Robinson Yıldırım Dilek Ibrahim Milushi

The ultramafic massif of Bulqiza, which belongs to the eastern ophiolitic belt of Albania, is a major source of metallurgical chromitite ore. The massif consists of a thick (> 4 km) sequence, composed from the base upward of tectonized harzburgite with minor dunite, a transitional zone of dunite, and a magmatic sequence of wehrlite, pyroxenite, troctolite and gabbro. Only sparse, refractory chromitites occur within the basal clinopyroxene-bearing harzburgites, whereas the upper and middle parts of the peridotite sequence contain abundant metallurgical chromitites. The transition zone dunites contain a few thin layers of metallurgical chromitite and sparse bodies are also present in the cumulate section. The Bulqiza Ophiolite shows major changes in thickness, like the 41–50 wt.% MgO composition similar with forearc peridotite as a result of its complex evolution in a suprasubduction zone (SSZ) environment. The peridotites show abundant evidence of mantle melt extraction at various scales as the orthopyroxene composition change from core to rim, and mineral compositions suggest formation in a forearc, as Fo values of olivine are in 91.1–93.0 harzburgite and 91.5–91.9 in dunite and 94.6–95.9 in massive chromitite. The composition of the melts passing through the peridotites changed gradually from tholeiite to boninite due to melt–rock reaction, leading to more High Cr# chromitites in the upper part of the body. Most of the massive and disseminated chromitites have high Cr# numbers (70–80), although there are systematic changes in olivine and magnesiochromite compositions from harzburgites, to dunite envelopes to massive chromitites, reflecting melt–rock reaction. Compositional zoning of orthopyroxene porphyroblasts in the harzburgite, incongruent melting of orthopyroxene and the presence of small, interstitial grains of spinel, olivine and pyroxene likewise attest to modification by migrating melts. All of the available evidence suggests that the Bulqiza Ophiolite formed in a suprasubduction zone mantle wedge.

Chromitite

Peridotite

Forearc

Massif

Ultramafic rock

10.1016/j.oregeorev.2015.04.011

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Citations (26)

Tectonic History of Anatolia from Adjoint Tomography

EGUGA (2012)

E. Bozdağ Zhu Huang Daniel Peter Jeroen Tromp

The Anatolian plate consists of several continental fragments that are connected to each other along suture zones and have gone through intricate geological processes over time. Its current tectonic and geodynamic processes mainly developed under the extensional regime caused by subduction along the Hellenic Arc and the northward collision of the Arabian plate on the eastern side. However, the complex subduction history of the region (e.g., closure of the Tethys Ocean, slab roll-back along the Hellenic arc, possible slab detachments, etc.) is still debated. Higher resolution tomographic models of the crust and the upper-mantle are crucial to produce detailed images of subducted slabs and old slab remnants and for interpretation of geodynamic processes. In this study, we discuss the past and present tectonic and geodynamic settings, in particular the slab history of the Anatolian plate and the surrounding area based on adjoint tomography of the region within the broader continental scale of Europe. Initial results reveal the major features of the Hellenic and Cyprus Arcs and slab remnants of the Tethys Ocean underneath Anatolia. The inversion procedure is based on spectral-element simulations of full wave propagation in 3D background models, which facilitates the use of full three-component seismograms, resulting in better data coverage and constraints on Earth structure. The tomographic image of the area is a result of more than 25 iterations using hundreds of thousands of frequency-dependent body- and surface-wave traveltime measurements. Broadband seismic waveforms were obtained from ORFEUS, IRIS (both from permanent and PASSCAL networks) and the Kandilli Observatory of Turkey, which we gratefully acknowledge for free data access.

Seismic Tomography

Slab

Forearc

Volcanic arc

Seismogram

Tethys Ocean

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