Politics of French Guiana the prefect is Éric Spitz. The President of the general council is Alain Tien-Liong and the President of the Regional Council is Rodolphe Alexandre. Politics in French Guiana are dominated by the Guianese Socialist Party, which has a close association with the Socialist Party in mainland France. A chronic issue affecting French Guiana is the influx of illegal immigrants and clandestine gold prospectors from Brazil and Suriname. The border between the department and Suriname is formed by the Maroni River, which flows through rain forest and is difficult for the Gendarmerie and the French Foreign Legion to patrol. There have
Geology of French Guiana the Paramaca series, which corresponds to a series of micaschists, aluminous paragneisses and black quartzites whose total thickness is about 1 km. The central granite massifs consist of granite plutons, granodiorites and quartz diorites dating from 2.05 to 2.15 billion years ago. The north of French Guiana corresponds to a synclinorium composed of the Paramaca series on which sandstone and fluviatile conglomerates lie unconformably. Shield rocks in Guyana are all dated between 1.6 and 2.5 billion years ago. The Quaternary lands are located in the northern part of Guyana, near the coast, unconformably on the Paleozoic lands. The coastal plains