Despite these difficult times, geochronological research continued.
The first National Conference on Isotope Geochronology and Geochemistry was held in 1975 at Guiyang and attended by over 200 scientists.
The isotopic laboratory at the Chinese Academy of Sciences was moved to Guiyang, the capital city of Guizhou Province in southwestern China.
Here, the new Institute of Geochemistry was established.
This method has been applied to better understand the origins of global Oceanic Anoxic Events (OAEs), the timing of shale deposition and correlation in Precambrian sedimentary basins and this rise of oxygen on Earth.
Re-Os isotopes in natural hydrocarbons is the third major research theme of the laboratory, again approaching this new field from both a systematic evaluation and application perspective.
Development of Re-Os geochronology for crustal matrices has been ongoing since 1998 in the laboratory.
This work has resulted in major advancements in the direct isotopic dating of crustal sulfide minerals, petroleum source-rocks, and natural hydrocarbons, using Re-Os isotopes.
A comprehensive review of work conducted during this period was presented by Yu and Li (1997).
This situation only gradually changed since late 1990s as the Chinese Academy of Sciences established new research programs.
During the past decade, a number of state-of-the-art geochronological laboratories have been established in China.
These are equipped with a series of high-performance mass spectrometers including high-resolution SIMS, AMS, TIMS, and noble gas mass spectrometers. (2003) Zircon SHRIMP U-Pb dating for the Cangshuipu volcanic rocks and its implications for the lower boundary age of the Nanhua strata in South China.
In addition, a large number of MC-ICP-MS and ICP-MS equipped with laser ablation systems are now available for geochronology throughout the country.