Full Breakdown
Chinese Scientists Uncover Massive Underwater Gold-Silver Deposit in the Western Pacific
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Discovery Overview
A joint scientific expedition launched from Shenzhen on August 10 aboard the research vessel Xiang Yang Hong 10 reported the identification of a sprawling hydrothermal field on the western Pacific seabed. The field contains “hydrothermal sulphide” ores that are unusually rich in precious metals, with silver concentrations exceeding 1 kg per tonne at peak grades and gold present alongside copper, zinc and lead. State broadcaster CCTV described the find as a “massive underwater mineral deposit” with exploitation potential far above typical terrestrial mines.
Scientific Background
Hydrothermal sulphide deposits form when super-hot, metal-laden water erupts from fissures on the ocean floor and rapidly cools upon contact with near-freezing seawater. The abrupt temperature drop causes metals to combine with sulphur and precipitate as solid sulphide minerals. In this newly mapped field, the resulting ores display metal grades that surpass most land-based counterparts, according to the expedition’s analysis.
Key Participants
The research team was led by Song Shiji, vice-dean of the Institute for Ocean Engineering at Tsinghua University. Additional scientists came from the Qingdao Institute of Marine Geology and Shanghai Jiao Tong University. All institutions contributed expertise in marine geology, ocean engineering, and mineral analysis.
Data and Value Assessment
- Silver: > 1 kg / tonne at highest grade (? 2.2 lb / tonne).
- Gold: Detected throughout the sulphide matrix, though specific concentrations were not disclosed.
- Base Metals: Predominantly copper, zinc and lead, typical of hydrothermal sulphide systems.
Official Statements & Responses
Scientists emphasized the deposit’s “extremely high exploitation value,” highlighting its potential to reshape assessments of seabed mineral resources. The team’s findings have been circulated through Chinese state media, prompting interest from governmental bodies responsible for marine resource management, though no formal policy decisions have been announced.
Verbatim Quotes
- “The [large seabed mining area] has extremely high exploitation value,” — Song Shiji — Song Shiji, vice-dean of the Institute for Ocean Engineering at Tsinghua University.