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Evaporates and strontium isotopes of borehole YZK-3 in southwest Shandong Province and their geological implications
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Zhaoqiang LI1, Minghui LI2, Xiangsuo SONG3, 4, 5, Liming GAO6, Lulu TANG3, 4, 5, Fengchen LIU3, 4, 5, Bin YANG3, 4, 5, Wusheng YU2, Shuyi LU7, Yiwen Zhang2
Journal of Palaeogeography (Chinese Edition) | 2026, 28(1) : 278 - 289
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Journal of Palaeogeography (Chinese Edition) | 2026, 28(1): 278-289
• LITHOFACIES PALAEOGEOGRAPHY AND SEDIMENTOLOGY •
Evaporates and strontium isotopes of borehole YZK-3 in southwest Shandong Province and their geological implications
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Zhaoqiang LI1, Minghui LI2, Xiangsuo SONG3, 4, 5, Liming GAO6, Lulu TANG3, 4, 5, Fengchen LIU3, 4, 5, Bin YANG3, 4, 5, Wusheng YU2, Shuyi LU7, Yiwen Zhang2
Affiliations
  • 1 Feicheng Natural Resources and Planning Bureau of Shandong Province, Shandong Feicheng 271600,China
  • 2 Institute of Tibetan Plateau,Chinese Academy of Sciences,Beijing 100101, China
  • 3 Shandong Institute of Geological Sciences,Jinan 250013,China
  • 4 Key Laboratory of Gold Mineralization Processes and Resource Utilization,Ministry of land and Resources,Jinan 250013,China
  • 5 Key Laboratory of Metallogenic Geological Process and Resources Utilization in Shandong Province,Jinan 250013,China
  • 6 Cao County Natural Resources and Planning Bureau of Shandong Province,Shandong Caoxian 274400,China
  • 7 Henan Earthquake Agency,Zhengzhou 450018,China

    • LI Zhaoqiang,born in 1972, senior engineer, is mainly engaged in research on geological survey and prospecting. E-mail: .

About Author:

LI Zhaoqiang,born in 1972, senior engineer, is mainly engaged in research on geological survey and prospecting. E-mail: .

Published: 2026-02-01 doi: 10.7605/gdlxb.2026.022
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A massive Tertiary salt deposit containing 10 billion tons has been identified in the Huanggang buried sag of southwestern Shandong Province. This deposit is a rare super-large rock salt deposit in eastern China. To investigate the material sources and depositional environment of this salt formation,we conducted a comprehensive analysis of salt mineral assemblages,stratigraphic distributions,and 87Sr/86Sr isotopic compositions in halite and anhydrite from a 520-meter core(Borehole YZK-3)situated at the basin margin. Among the salt minerals,carbonate minerals mainly contained calcite,dolomite,ankerite and minor aragonite. Sulfate minerals contained anhydrite,with minor gypsum and celestite. Chloride minerals were composed of only halite. Based on their distribution and genesis,the paleolake evolution during the Middle-Late Eocene to Oligocene progressed through five distinct stages: freshwater→brackish→saline→brackish→freshwater lake systems. The87Sr/86Sr ratios measured in halite and anhydrite(0.711227-0.71177)significantly exceed contemporaneous seawater values. This isotopic disparity,combined with existing hydrothermal research data,demonstrates the absence of marine influences in the brine system.Substantial contributions from deep hydrothermal fluids mixed with meteoric waters was an important source of salt material.

halite  /  gypsum  /  anhydrite  /  strontium isotope  /  Paleogene  /  Huanggang buried sag
李兆强, 李明慧, 宋香锁, 高黎明, 唐璐璐, 刘凤臣, 杨斌, 余武生, 路淑毅, 张译文. 鲁西南YZK-3钻孔的盐类矿物和锶同位素组成及其地质意义*. 古地理学报, 2026 , 28 (1) : 278 -289 . DOI: 10.7605/gdlxb.2026.022
Zhaoqiang LI, Minghui LI, Xiangsuo SONG, Liming GAO, Lulu TANG, Fengchen LIU, Bin YANG, Wusheng YU, Shuyi LU, Yiwen Zhang. Evaporates and strontium isotopes of borehole YZK-3 in southwest Shandong Province and their geological implications[J]. Journal of Palaeogeography (Chinese Edition), 2026 , 28 (1) : 278 -289 . DOI: 10.7605/gdlxb.2026.022
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Year 2026 volume 28 Issue 1
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Article Info
doi: 10.7605/gdlxb.2026.022
  • Receive Date：2025-04-10
  • Online Date：2026-09-22
  • Published：2026-02-01
Article Data
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History
  • Received：2025-04-10
  • Revised：2025-05-04
Affiliations
    1 Feicheng Natural Resources and Planning Bureau of Shandong Province, Shandong Feicheng 271600,China
    2 Institute of Tibetan Plateau,Chinese Academy of Sciences,Beijing 100101, China
    3 Shandong Institute of Geological Sciences,Jinan 250013,China
    4 Key Laboratory of Gold Mineralization Processes and Resource Utilization,Ministry of land and Resources,Jinan 250013,China
    5 Key Laboratory of Metallogenic Geological Process and Resources Utilization in Shandong Province,Jinan 250013,China
    6 Cao County Natural Resources and Planning Bureau of Shandong Province,Shandong Caoxian 274400,China
    7 Henan Earthquake Agency,Zhengzhou 450018,China

Corresponding:

YANG Bin,born in 1975, researcher, is mainly engaged in research on geological survey and prospecting. E-mail: .
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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