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September 19, 2025Geological Society of America Bulletin

Fluid inclusions and in situ U-Pb dating constraints on hydrocarbon accumulation in the Ordovician strata of the Ordos Basin, China

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Authors

HDHao DuZhejiang Ocean UniversityYLYifeng LiuSouth China University of TechnologyXLXiaorong LuoNorthwest University

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Overview

Analysis of U-Pb dating reveals hydrocarbon generation stages in Ordovician strata, implicating Paleozoic tectonic events.

Key Points

  • Hydrocarbon generation stage was identified in the Ordovician strata during the Caledonian Orogeny, indicating a critical timing.
  • Analysis shows significant uplift occurred during the Late Silurian to Early Carboniferous, affecting hydrocarbon generation and accumulation.
  • Mesozoic subsidence led to increased temperatures and salinity within the Ordovician strata, supporting secondary hydrocarbon activities.
  • Gas accumulation in the Late Triassic was likely sourced from the overlying Carboniferous-Permian source rocks, influencing reservoir dynamics.

Cite This Study

Du et al. (2025) studied this question.

synapsesocial.com/papers/68d464ea31b076d99fa640d9https://doi.org/10.1130/b38246.1
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Supplemental Material: Fluid inclusions and in situ U-Pb dating constraints on hydrocarbon accumulation in the Ordovician strata of the Ordos Basin, China2025
  2. 2Supplemental Material: Fluid inclusions and in situ U-Pb dating constraints on hydrocarbon accumulation in the Ordovician strata of the Ordos Basin, China2025
  3. 3Petrography, Fluid Inclusions and Isotopic Analysis of Ordovician Carbonate Reservoirs in the Central Ordos Basin, NW China2025
  4. 4Hydrothermal activity near the Permian–Triassic transition in the south‐western Ordos Basin, China: Evidence from carbonate cementation in Upper Permian sandstones2024 · 3 citations
  5. 5Tectonic Evolution and Its Controls on Hydrocarbon Systems in the Eastern Ordos Basin and Adjacent Shanxi Region, China: Insights from Low-Temperature Thermochronology2026