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Zhang G.,Shandong University | Pan Z.,Shandong Institute and Laboratory of Geological science | Bai A.,Centers for Disease Control and Prevention | Li J.,Shandong University | Li X.,Shandong University
Environmental Monitoring and Assessment | Year: 2014

The concentration of 12 organochlorine pesticides (OCPs) were measured in water, sediment, aquatic plant, and animal (shrimp and fish) of Nansi Lake by gas chromatography equipped with an electron capture detector. The total OCPs concentrations were 65.31-100.31 ng L-1 in water, 2.9-6.91 ng g -1 dry weight (dw) in sediments, 1.29-6.42 ng g-1 dw in aquatic plants and 7.57-17.22 ng g-1 dw in animals. The OCPs composition profiles showed that heptachlor compounds was also the predominant OCPs contaminants in addition to hexachlorocyclohexanes (HCHs) and dichlorodiphenyltrichloroethanes (DDTs) in Nansi Lake. According to the source of HCHs and DDTs in sediment samples, there was no new input and the HCHs pollution mainly came from the use of Lindane in Nansi Lake. Bioaccumulation of OCPs in aquatic biota indicated that DDTs and heptachlor compounds had a strong accumulation, followed by HCHs and drins. The accumulation abilities of fish for OCPs were higher than those of plants and shrimps. The OCPs biota-sediment accumulation factor values of Channa argus was the highest in fish samples, followed by Carassius auratus, and Cyprinus caspio. Risk assessment of sediment showed that heptachlor epoxide had a higher occurrence possibility of adverse ecological effects to benthic species. Based on the calculation of acceptable daily intake and hazard ratio, HCHs in fish and shrimps from Nansi Lake had a lifetime cancer risk of greater than one per million. The risk assessment of water, sediment, and fish indicated the water environment of Nansi Lake is at a safe level at present. © 2013 Springer Science+Business Media.


Li X.,Shandong University of Science and Technology | Liu Y.,Shandong University of Science and Technology | Guo J.,CAS Institute of Geology and Geophysics | Li H.,Shandong Institute and Laboratory of Geological science | Zhao G.,University of Hong Kong
Acta Petrologica Sinica | Year: 2013

The Paleoproterozoic HP mafic granulite and calc-silicate were found from Laixi, Jiaobei terrane, consisting of almandine dominated garnet-augite- ferrohypersthene and grossular-zoisite-prehnite-albite respectively. Mineralogical and petrological studies show that the calc-silicate formed after the HP mafic granulite by processes combined retrogressive metamorphism with Ca alteration. The HP mafic granulites records four stage geological processes, including pre-granulite facies, peak granulite facies, retrogressive combined with Ca alteration and complete Ca alteration processes with mineral assemblages as Cpx + PI + Qtz (M1), Grt + Cpx + Rt + Qtz (M2), Cpx + PI + Opx + Ilm + Mgt + Ep (M3) and Grs + Zo + Prh + Ab + Cal (M 4). The HP mafic granulite is rich in LIL elements Ba, Rb, K, Rb, Th and depleted in HFS elements Nb, Zr, Ti and Y, having LREE rich right-inclined REE pattern and showing island-arc basaltic characteristics. Further studies by using discrimination diagrams, the HP mafic granulite presents island-arc tholeiitic characteristics, probably formed in the back-arc extension tectonic setting. After formation of the mafic rock, it experienced granulitic facies metamorphism during collisional convergence of the Jiao-Liao-Ji orogenic belt and afterwards experienced retrogressive and Ca alteration processes during the lift of the belt.


Li X.,Shandong University of Science and Technology | Guo J.,Shandong University of Science and Technology | Zhao G.,University of Hong Kong | Li H.,Shandong Institute and Laboratory of Geological science | Song Z.,Shandong University of Science and Technology
Acta Petrologica Sinica | Year: 2011

Jiaobei terrane contains low to high grade Paleoproterozoic metamorphosed sedimentary sequence deposited under littoral to neritic environments, belonging to part of the Jiao-Liao-Ji belt of the Eastern Block in the North China Craton. The clock wise P-T paths concluded from HP mafic and pelitic granulites indicate the closing and collisional process of the belt. This study focuses on the formation of calc-silicate that is closely associated with HP mafic granulite. On the basis of mineral assemblage evolution of the PT peudosention in SACFM system, critical metamorphic reactions, combined with calculation of Grt-Cpx thermometer, the precursor granulite is estimated having experienced at least 780 ∼ 850°C and 1.0 - 1. 1GPa metamorphic conditions, and retrograde to 400 ∼ 650°C and 0. 6 ∼0. 75GPa. Accordingly, a clock wise P-T path is concluded. Results show that the calc-silicate develops on the late stage of continent-continent collision during the exhumation process of the HP granulite, combined with Ca metasomatism at the same time. Establishment of the genetic relationship of calc-silicate and the mafic garnet granulite present the importance of petrological paragenetic association during the exhumation of collisional metamorphic terrane.


Chen G.,University of Jinan | Xu Q.,University of Jinan | Wang Y.,University of Jinan | Song G.,University of Jinan | And 3 more authors.
Catalysis Science and Technology | Year: 2016

It is still an important issue to develop a facile, environmentally friendly way to synthesize bimetal oxide materials. In this paper, Co3O4-CeO2 core-shell catalysts were prepared by an interfacial reaction, where Co(CO3)0.35Cl0.2(OH)1.1 nanorods were dispersed in Ce3+ aqueous solution for 2 days, followed by a calcination step. The samples were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). Based on the characterization and comparative experimental results, we proposed that the OH- ions slowly dissociated from the Co(CO3)0.35Cl0.2(OH)1.1 precursor combined with Ce3+ to develop into Ce(OH)3 nanoparticles because of its smaller solubility product constant than that of the Co precursor or Co(OH)2. Neither an additional precipitation agent nor stabilizing molecules were employed during the whole preparation. Raman spectroscopy and H2-temperature programmed reduction (H2-TPR) analysis revealed that there is a synergistic effect between Co3O4 and CeO2 in the as-prepared Co3O4-CeO2 core-shell catalysts, which is responsible for their enhanced catalytic activity toward CO oxidation in comparison to pure Co3O4 and CeO2. © 2016 The Royal Society of Chemistry.


Bagnoli G.,University of Pisa | Qi Y.P.,CAS Nanjing Institute of Geology and Palaeontology | Zuo J.X.,Henan Provincial Bureau of Geo exploration and Mineral Development | Du S.X.,Shandong Institute and Laboratory of Geological science | And 2 more authors.
Palaeoworld | Year: 2014

The Tangwangzhai section, western Shandong Province, North China, the type section for the Cambrian Kushan and Chaomitian formations, yielded a diverse and relatively well-preserved conodont fauna, in which we recognize the Westergaardodina orygma, Westergaardodina matsushitai, Muellerodus? erectus, and Westergaardodina aff. fossa- Prooneotodus rotundatus zones of the North China conodont zonation. The Tangwangzhai conodont succession can be correlated not only with the polymerid trilobites occurring in the section but also with the conodont zones established for South China. The first occurrence of Furnishina longibasis and Furnishina quadrata in the upper part of the Westergaardodina matsushitai Zone allows the recognition of the base of the Paibian Stage and Furongian Series in the upper part of the Kushan Formation. The base of the Jiangshanian Stage, in the uppermost Muellerodus? erectus Zone, can be recognized by the presence of Westergaardodina cf. calix close to the base of the Chaomitian Formation. Chemostratigraphic analyses of the Tangwangzhai section show the onset of a positive carbon isotope excursion, referred to the SPICE event, in the upper part of the Kushan Formation at a level corresponding to the first occurrence of F. longibasis and F. quadrata. The base of the Jiangshanian Stage in the section is close to the demise of the SPICE positive excursion. © 2014.


Qiao W.,China University of Mining and Technology | Qiao W.,Yanzhou Mining Group Ltd Corporation | Hu G.,Shandong Institute and Laboratory of Geological science | Li W.-P.,China University of Mining and Technology
Caikuang yu Anquan Gongcheng Xuebao/Journal of Mining and Safety Engineering | Year: 2013

In this paper, to reveal the water change process of water-inrush aroused by fault activation, based on the example analysis of water inrush through fault in the fully mechanized top-coal caving face, the similar material simulation models of water inrush aroused by fault activation under different water pressures were designed, including the coal mining under the hanging wall and foot wall of fault, respectively. Meanwhile, the variation rules of Reynolds numbers, fillings and voidage of fault zone along with time were analyzed according to the test data, and the variation rules of voidage and water inflow along with time were comparized. The results show that the water inrush aroused by fault activation in fully mechanized top-coal caving has experienced the process of pore fluid, fracture flow and pipe flow, and the time when the pore fluid converses into fracture flow(7, 9, 13 and 15 s) is identified according to the variation law of filling emission quantity along with time, while the time when the fracture flow converses into pipe flow(30, 35 and 40 s) is obtained according to the change law of voidage along with time. The test results have explained the conversion phenomenon from seepage to flow of water inrush aroused by fault activation in fully mechanized top-coal caving, and are anastomotic with the expressive characteristics of field examples.


Song M.,Bureau of Mineral Resources | Yi P.,Bureau of Mineral Resources | Xu J.,Bureau of Mineral Resources | Cui S.,No 6 Exploration Institute Of Geology And Mineral Resources | And 4 more authors.
Science China Earth Sciences | Year: 2012

Based on our study of the nature and variation of mineralization-controlling faults in their deep extension and the spatial distribution of gold orebodies in the northwestern Shandong Peninsula (NSP), here we propose that the gold deposits in the Jiaojia gold belt are controlled by listric faults and the gold deposits in the NSP are controlled by extensional fault system. We also suggest that there is a multiple mineralization space in the deep part of the NSP gold belt. As steps or benches occur along the deep extention of the listric fault where its dipping angle changes from steep to gentle, a number of gold deposits are correspondingly distributed as a steplike pattern, which is named as a step metallogenetic model for gold deposits in the NSP. The gold deposits in Shandong Peninsula were formed in the Cretaceous when the crust in the region experienced extention and thinning following the strong collision between North China Plate and Yangtze Plate during the Triassic. Crust anataxis, fluid remobilization, and extention-detachement of the crust are the leading factors for the gold mineralization. © 2012 Science China Press and Springer-Verlag Berlin Heidelberg.


Tian H.,Shandong Jianzhu University | Zhang Z.,Shandong Institute and Laboratory of Geological Science | Zhang B.,Shandong Jianzhu University | Zhang B.,Shandong Normal University | And 3 more authors.
Acta Geologica Sinica | Year: 2013

The Yishu fault zone (mid-segment of the Tanlu fault zone) was formed in the Presinian. Periodic tectonic activities and strong seismic events have occurred along the fault zone. During the initial stage of the Caledonian Movement, with the proceeding of the marine transgression from the Yishu paleo-channel to the western Shandong, uneven thick sediments, composed mainly of sand, mud and carbonates of littoral, lagoon, and neritic facies, were deposited in the Yishu fault zone and western Shandong, and constructed the bottom part of the Lower Cambrian consisting of the Liguan and Zhushadong formations. Through field observations and the lab-examinations, various paleoseismic records have been discovered in the Liguan Formation and the Zhushadong Formations of the Yishu fault zone and its vicinity, including some layers with syn-sedimentary deformation structures that were triggered by strong earthquakes (i.e. seismite, seismo-olistostrome, and seismo-turbidite). Paleoseismic records developed in the Zhushadong Formation are mainly seismites with soft-sediment deformation structures, such as liquefied diapir, small liquefied-carbonate lime-mud volcano, liquefied vein, liquefied breccia, convolute deformation (seismic fold), graded fault, soft siliceous vein, and deformation stromatolite, as well as seismites with brittle deformation structures of semiconsolidated sediments. Paleoseismic records preserved in the Liguan Formation are not only seismo-olistostrome with a slump fold, load structure, and ball-and-pillows, but also seismo-turbidite with convolution bedding, graded bedding and wavy-bedding. However, in the western Shandong area, the closer to the Yishu fault zone, the greater the thickness of the Liguan Formation and the Zhushadong Formation, the greater the number and type of layers with paleoseismic records, and the higher the earthquake intensity reflected by associations of seismic records. This evidence indicates that tectonic taphrogenesis accompanied by strong earthquake events occurred in the Yishu fault zone during the initial stage of the Caledonian Movement, which embodied the break-up of the Sino-Korean Plate along the Paleo-Tanlu fault zone at that time.


Li H.K.,Shandong Institute and Laboratory of Geological science | Yang Y.B.,Shandong Institute and Laboratory of Geological science | Geng K.,Shandong Institute and Laboratory of Geological science | Cao L.L.,Shandong Institute and Laboratory of Geological science
Acta Petrologica Sinica | Year: 2013

Based on drawing up of the 1: 500000 tectonic facies map of the Shandong Province and the comprehensive research, a new proposal about the tectonic evolution of the Shandong Province has been put forward. The Shandong block was formed through multi-episodes of accretion, collision, mosaic and superposition, which can be divided into three major tectonic evolution stages: PreNanhua Period, Nanhua to Middle Triassic Period, Late Triassic to Quaternary Period. Geotectonic units include cratonic systems, orogenic systems and superimposed orogenic-rift systems, and three grade I tectonic units, five grade II tectonic units, eighteen grade III tectonic units and fifty-five grade IV tectonic units have been recognized. Based on the pronounced differences of stratigraphy, igneous activities, structural framework and mineralization between the western and eastern Shandong, the newly recognized Bohai block is thought as a grade II tectonic unit under the North China Block. North boundary of the Dabie-Sulu orogenic belt and boundary between the western Shandong block and the Bohai block have been determined. The Paleoproterozoic Jinshan and Fenzishan groups were thought to be formed in a back-arc basin located on the continental margin and then both of them were involved in the orogenic process in the Paleoproterozoic. The Jingshan Group has also experienced deep-subduction and high-pressure granulite-facies metamorphism. Tectonic-thermal events and gold-mineralization in the eastern Shandong were controlled by the Tethys, Paleo-Asian Ocean and Pacific Ocean. Gold ore was formed in the Mesozoic transformation of tectonic regime and lithosphère thinning, strongly related with the collision between the North China and South China blocks and subduction of the Pacific plate.


Qiao W.,China University of Mining and Technology | Qiao W.,Yankuang Group | Li W.-P.,China University of Mining and Technology | Sun R.-H.,China University of Mining and Technology | And 2 more authors.
Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering | Year: 2011

The elastic energy accumulates in the hard rock stratum with whole blocky structure because of underground mining. The hard rock stratum will fail with the increase of the elastic energy and instantaneously release massive energy of motion, which induces high water pressure in the aquifer near the hard rock stratum. The high water pressure creates the water-conducting which is impacted instantly between the aquifer and excavation free face so as to form the dynamic water inrush. Haizi Coal Mine is taken as a case study. The geological conditions and main factors of separation layer water are analyzed based on field investigation and numerical simulation. The burst tendency indices (Dt, WET and KE) of the hard rock stratum are tested. The excess hydrostatic pressure under the action of the impact dynamics is obtained by the relevant tests. Thus, the formation mechanism of dynamic impact failure zone is preliminarily studied based on the theory of blasting dynamic mechanics.

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