Mechanism of organo-nickel co-enrichment in marine black shale

Abstract

rganic matter and metal elements are commonly co-enriched in marine black shales. However, the element types vary among different shales and the relevant mechanisms of organo-metal co-enrichment are still unclear. The super-enrichment of organic matter and nickel in the ore bed of Early Cambrian marine black shale of southern China provides an ideal opportunity to investigate this mechanism. Herein, to clarify the coenrichment mechanism of organic matter and , the laminated structure of this ore bed was characterized and the geochemical and mineralogical proxies of different laminae were analyzed. The results indicated that there are four types of laminae in this ore bed, namely, siliceous laminae, calcareous laminae, clay minerals laminae, and organic-rich laminae. Clay minerals laminae and organic-rich laminae were deposited under anoxic environments, while siliceous laminae were deposited under strong oxidizing to anoxic environments. Neither organic matter nor are distributed homogeneously in the ore bed; organic matter is mainly concentrated in organic-rich laminae, while is largely enriched in clay minerals laminae. Clay minerals and organic matter have strong adsorption capacity for , and the adsorption capacity of clay minerals (such as illite) for is stronger than that of organic matter. Hydrothermal events and terrestrial input are key factors affecting the paleoenvironment and laminated structure during the deposition of the ore bed. Although organic matter and are co-enriched in the ore bed, their enrichment stages and conditions vary according to the geochemical differences among laminae.

Document Type: Original article

Cited as: Xia, P., Hao, F., Yang, C., Tian, J., Fu, Y., Wang, K. Mechanism of organo-nickel co-enrichment in marine black shale. Advances in Geo-Energy Research, 2024, 13(1): 10-21. https://doi.org/10.46690/ager.2024.07.03

References

Cao, J., Hu, K., Zhou, J., et al. Organic clots and their differential accumulation of Ni and Mo within early Cambrian black-shale-hosted polymetallic Ni-Mo deposits, Zunyi, South China. Journal of Asian Earth Sciences, 2013, 62: 531-536.

Dähn, R., Scheidegger, A. M., Manceau, A., et al. Structural evidence for the sorption of Ni (II) atoms on the edges of montmorillonite clay minerals: A polarized X-ray absorption fine structure study. Geochimica et Cosmochimica Acta, 2003, 67(1): 1-15.

Dai, C., Zhen, Q., Chen, J., et al. The metallogenic geological background of the Xuefeng Caledonian tectonic cycle in Guizhou, China. Earth Science Frontiers, 2013, 20: 219-225.

Dymond, J., Suess, E., Lyle, M. Barium in deep sea sediments: A geo-chemical proxy for paleoproductivity. Paleoceanography, 1992, 7(2): 163-181.

Fan, D., Zhang, D., Ye, J. Black Rock Series and Related Mineral Deposits in China. Beijing, China, Science Press, 2004. (in Chinese)

Ford, R. G., Scheinost, A. C., Scheckel, K. G., et al. The link between clay mineral weathering and the stabilization of Ni surface precipitates. Environmental Science & Technology, 1999, 33: 3140-3144.

Fu, Y., Zhou, W., Wang, J., et al. The relationship between environment and geochemical characteristics of black rock series of Lower Cambrian in northern Guizhou. Acta Geologica Sinica, 2021, 95: 536-548.

Gao, J., Li, X., Cheng, G., et al. Structural evolution and characterization of organic-rich shale from macroscopic to microscopic resolution: The significance of tectonic activity. Advances in Geo-Energy Research, 2023, 10(2): 84-90.

Ghasemi, M., Tatar, A., Shafiei, A., et al. Prediction of asphaltene adsorption capacity of clay minerals using machine learning. The Canadian Journal of Chemical Engineering, 2023, 101(5): 2579-2597.

Guizhou Geological Survey. In Regional Geology of China: Cambrian. Beijing, China, Geology Press, 2017. (in Chinese)

Gu, Y., Li, X., Yang, S., et al. Microstructure evolution of organic matter and clay minerals in shales with increasing thermal maturity. Acta Geologica Sinica, 2020, 94: 280-289.

Han, S., Hu, K., Cao, J., et al. Mineralogical characteristics of Ni-Mo polymetallic deposits in early cambrian black rock series from southern china. Acta Mineralogica Sinica, 2012, 32: 269-280.

Han, T., Fan, H., Wen, H., et al. Petrography and sulfur isotopic compositions of SEDEX ores in the early Cambrian Nanhua Basin, South China. Precambrian Research, 2020, 345: 105757.

Han, T., Fan, H., Zhu, X., et al. Submarine hydrothermal contribution for the extreme element accumulation during the early Cambrian, South China. Ore Geology Reviews, 2017, 86: 297-308.

Han, T., Zhu, X., Li, K., et al. Metal sources for the polymetallic Ni-Mo-PGE mineralization in the black shales of the Lower Cambrian Niutitang Formation, South China. Ore Geology Reviews, 2015, 67: 158-169.

Hao, F., Zhou, X., Zhu, Y., et al. Lacustrine source rock deposition in response to co-evolution of environments and organisms controlled by tectonic subsidence and climate, Bohai Bay Basin, China. Organic Geochemistry, 2011, 42(4): 323-339.

Hao, F., Zou, H., Lu, Y. Mechanisms of shale gas storage: Implications for shale gas exploration in China. AAPG Bulletin, 2013, 97(8): 1325-1346.

Hoffman, P. F., Kaufman, A. J., Halverson, G. P., et al. A neoproterozoic snowball earth. Science, 1998, 281: 1342-1346.

Jia, Z., Hou, D., Sun, D., et al. Hydrothermal sedimentary discrimination cri-teria and its coupling relationship with the source rocks. Natural Gas Geoscience, 2016, 27: 1025-1034.

Jones, B., Manning, D. A. C. Comparison of geochemical indices used for theinterpretation of palaeoredox conditions in ancient mudstones. Chemical Geology, 1994, 111: 111-129.

Laranjeira, V., Ribeiro, J., Moreira, N., et al. Geochemistry of Precambrian black shales from Ossa Morena Zone (Portugal): Depositional environment and possible source of metals. Journal of Iberian Geology, 2023, 49: 1-19.

Lehmann, B., Frei, R., Xu, L., et al. Early Cambrian black shale-hosted Mo-Ni and V mineralization on the rifted margin of the Yangtze platform, China: Reconnaissance chromium isotope data and a refined metallogenic model. Economic Geology, 2016, 111: 89-103.

Liang, C., Cao, Y., Liu, K., et al. Diagenetic variation at the lamina scale in lacustrine organic-rich shales: Implications for hydrocarbon migration and accumulation. Geochimica et Cosmochimica Acta, 2018, 229: 112-128.

Li, J., Cai, J. Quantitative characterization of fluid occurrence in shale reservoirs. Advances in Geo-Energy Research, 2023, 9(3): 146-151.

Liu, X., Tournassat, C., Grangeon, S., et al. Molecular-level understanding of metal ion retention in clay-rich materials. Nature Reviews Earth & Environment, 2022, 3: 461-476.

Mao, J., Lehmann, B., Du, A., et al. Re-Os dating of polymetallic Ni-Mo-PGE-Au mineralization in Lower Cambrian black shales of South China and its geologic significance. Economic Geology, 2002, 97: 1051-1061.

McLennan, S. M. Relationships between the trace element composition of sedimentary rocks and upper continental crust. Geochemistry Geophysics Geosystems, 2001, 2: 1021.

Moore, J. K., Fu, W. W., Primeau, F., et al. Sustained climate warming drives declining marine biological productivity. Science, 2018, 359: 1139-1143.

Mou, Y., Xia, P., Zhu, L., et al. Geochemical characteristics of the shale gas reservoirs in Guizhou Province, South China. Arabian Journal of Chemistry, 2024, 17: 105616.

Ning, S., Xia, P., Zou, N., et al. Organic matter pore characteristics of over-mature marine black shale: A comparison of organic fractions with different densities. Frontiers of Earth Science, 2022, 17(1): 310-321.

Och, L. M., Shields-Zhou, G. A., Poulton, S. W., et al. Redox changes in Early Cambrian black shales at Xiaotan section, Yunnan Province, South China. Precambrian Research, 2013, 225, 166-189.

Pan, J., Ma, D., Xia, F., et al. Study on nickel and monlyb-denum mineraals in Ni-Mo sulfide layer of the lower cambrian black rock series, northwestern Hunan. Acta Mineralogica Sinica, 2005, 25: 283-288.

Pi, D. H., Liu, C. Q., Shields-Zhou, G. A., et al. Trace and rare earth element geochemistry of black shale and kerogen in the early cambrian niutitang formation in Guizhou province, South China: Constraints for redox environments and origin of metal enrichments. Precambrian Research, 2013, 225, 218-229.

Ross, D. J. K., Bustin, R. M. Investigating the use of sedimentary geochemical proxies for paleoenvironment interpretation of thermally mature organic-rich strata: Examples from the Devonian-Mississippian shales, Western Canadian Sedimentary Basin. Chemical Geology, 2009, 260: 1-19.

Scheckel, K. G., Sparks, D. L. Dissolution kinetics of nickel surface precipitates on clay mineral and oxide surfaces. Soil Science Society Of America Journal, 2001, 65: 685-694.

Schoepfer, S. D., Shen, J., Wei, H., et al. Total organic carbon, organic phosphorus, and biogenic barium fluxes as proxies for paleomarine productivity. Earth-Science Reviews, 2015, 149: 23-52.

Shi, C., Cao, J., Han, S., et al. A review of polymetallic mineralization in lower Cambrian black shales in South China: Combined effects of seawater, hydrothermal fluids, and biological activity. Palaeogeography, 2021, 561: 110073.

Shi, C., Cao, J., Hu, K., et al. New understandings of Ni-Mo mineralization in early Cambrian black shales of South China: Constraints from variations in organic matter in metallic and non-metallic intervals. Ore Geology Reviews, 2014, 59: 73-82.

Tan, X., Liu, G., Mei, H., et al. The influence of dissolved Si on Ni precipitate formation at the kaolinite water interface: Kinetics, DRS and EXAFS analysis. Chemosphere, 2017, 173: 135-142.

Tribovillard, N., Algeo, T. J., Lyons, T., et al. Trace metals as paleoredox and paleoproductivity proxies: An update. Chemical Geology, 2006, 232: 12-32.

Wignall, P. B., Twitchett, R. J. Oceanic anoxia and the end permian mass extinction. Science, 1996, 272(5265): 1155-1158.

Wu, L., Bai, G., Yuan, Z. Mineral Raw Materials Handbook: Mineral Raw Materials of Oil and Gas Energy. Beijing, China, Chemical Industry Press, 2007. (in Chinese)

Xia, P., Fu, Y., Yang, Z., et al. The relationship between sedimentary environment and organic matter accumulation in the niutitang black shale in Zhenyuan, northern Guizhou. Acta Geologica Sinica, 2020a, 94: 947-956.

Xia, P., Hao, F., Tian, J., et al. Depositional environment and organic matter enrichment of early Cambrian black shales in the Upper Yangtze region, China. Energies, 2022, 15: 4551.

Xia, P., Li, H., Fu, Y., et al. Effect of lithofacies on pore structure of the Cambrian organic-rich shale in northern Guizhou, China. Geological Journal, 2020b, 56: 1130-1142.

Xin, B., Zhao, X., Hao, F., et al. Laminae characteristics of lacustrine shales from the Paleogene Kongdian Formation in the Cangdong Sag, Bohai Bay Basin, China: Why do laminated shales have better reservoir physical properties? International Journal of Coal Geology, 2022, 260: 104056.

Yang, Z., Wu, P., Fu, Y., et al. Coupling of the redox history and enrichment of Ni-Mo in black shale during the early cambrian: Constraints from S-Fe isotopes and trace elements of pyrite, South China. Ore Geology Reviews, 2022, 143: 104749.

Yeasmin, R., Chen, D., Fu, Y., et al. Climatic-oceanic forcing on the organic accumulation across the shelf during the Early Cambrian (Age 2 through 3) in the mid-upper Yangtze Block, NE Guizhou, South China. Journal of Asian Earth Sciences, 2017, 134: 365-386.

Yu, Y., Xia, P., Wang, Y., et al. The Occurrence and Characteristics of Organic Matter in overmature marine shale: A case study of the lower cambrian niutitang formation shale in Guizhou. Journal of Northeast Petroleum University, 2022, 46(4): 1-15.

Yu, Y., Xia, P., Zhong, Y., et al. Effect of adsorption of metal elements Ni and V on the structure of Humin. Rock and Mineral Analysis, 2023, 42(3): 536-547.

Zhang, C., Liu, X., Lu, X., et al. Surface complexation of heavy metal cations on clay edges: Insights from first principles molecular dynamics simulation of Ni (II). Geochimica et Cosmochimica Acta, 2017, 203: 54-68.

Zhang, Q., Hu, X., Zhou, D. Adsorption properties of attapulgite clay of huining for Ni (II). Chemistry & Bio-engineering, 2011, 28: 85-87.

Zhang, X., Shu, D., Han, J., et al. Triggers for the Cambrian explosion: Hypotheses and problems. Gondwana Research, 2014, 25: 896-909.

Zhao, W., Guan, M., Liu, W., et al. Low-to-medium maturity lacustrine shale oil resource andin-situconversion process technology: Recent advances andchallenges. Advances in Geo-Energy Research, 2024, 12(2): 81-88.

Zhu, H., Huang, C., Ju, Y., et al. Multi-scale multidimensional characterization of clay-hosted pore networks of shale using FIBSEM, TEM, and X-raymicro-tomography: Implications for methane storage and migration. Applied Clay Science, 2021, 213: 106239.

Zhu, L., Zhang, D., Zhang, J., et al. Geological Theory, Technology and Practice of Paleozoic Passive Marginal Shale Gas in the East of the Upper Yangtze River: The Potential of Shale Gas Resources in Guizhou. Beijing, China, Science Press, 2019a. (in Chinese)

Zhu, M., Yang, A., Yuan, J., et al. Cambrian integrative stratigraphy and timescale of China. Science China: Earth Science, 2019b, 62(1): 25-60.