supported by the State of Texas Advanced Resource Recovery (STARR) program at the Bureau of Economic Geology (BEG);minor financial support from the China Scholarship Council (Grant No. 201606440062);the Geological Society of America Graduate Student Research Grant (Grant No. 9244823)。
Concentrations of redox-sensitive trace-element(RSTE) in marine shales have long been interpreted simply as redox proxies. However, the impact of other non-redox factors(e.g., sea-level fluctuation and seawater chemis...
阅读理解Ridgewood is a small town 20 miles from Manhattan,New York.It is a quiet town,perfect for raising children away from the rapid pace(节奏)of the city.However,besides hours of homework,many Ridgewood children ha...
Advanced materials and catalysis have attracted increasing attention in recent years,particularly due to the rapid development and great progress in energy and environmental areas.It is well acknowledged that the key ...
Recently,big cities like Beijing and Shanghai have begun to offer Summer Camp services on campus to primary school students.Students will be provided with libraries and reading rooms,and besides,they can also particip...
My name is Ariel.I’m twelve years old.I have a big family.There are six people in my family.Look!This is a photo of my family.These are my grandparents.They are old and(1)healthy.Who are they?They are my parents.The ...