French Guiana two senators to the French Senate. The Guianese Socialist Party dominated politics in French Guiana until 2010. 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, the Maroni River, flows through rain forest and is difficult for the Gendarmerie and the French Foreign Legion to patrol. There have been several phases launched by the French government to combat illegal gold mining in French Guiana, beginning with Operation Anaconda beginning in 2003, followed by Operation Harpie in 2008, 2009 and Operation Harpie Reinforce
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