(from the article `geosyncline`) ...of limestones and well-sorted quartzose sandstones, on the other hand, is considered to be evidence of shallow-water formation, and such rocks ... Found on http://www.britannica.com/eb/a-z/m/98
A geosyncline situated near a continental margin and receiving well-sorted clastic and chemical sediments from the continent, not associated with volcanism. Found on http://www.evcforum.net/WebPages/Glossary_Geology.html