Fig. 1 (IMAGE) Science China Press Caption MOA and solid bitumen in shales, and relationships between their Ramm parameters (RBS?ID/IG) and bitumen reflectance (BRo). Credit ©Science China Press Usage Restrictions Use with credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.