| 词条 | Florianópolis Formation |
| 释义 |
| name = Florianópolis Formation | period = Albian | age = Albian ~{{fossil range|113|100}} | image = | imagesize = | caption = | type = Geological formation | prilithology = Sandstone | otherlithology = Siltstone, shale | unitof = Camburi Group | subunits = | underlies = Santos Formation | overlies = Ariri Formation | thickness = {{convert|343|m|ft|abbr=on}} (type well) | area = | map = Santos basin map.png | map_caption = Location of the Santos Basin | location | coordinates = {{coord|26|6|S|43|43|W|display=inline,title}} | region = Santos Basin, South Atlantic | country = {{BRA}} | extent = | namedfor = Florianópolis | namedby = | year_ts = | location_ts = | coordinates_ts = | paleocoordinates_ts = | region_ts = | country_ts = | thickness_ts = }} The Florianópolis Formation ({{lang-pt|Formacão Florianópolis}}) is a geological formation of the Santos Basin offshore of the Brazilian states of Rio de Janeiro, São Paulo, Paraná and Santa Catarina. The predominantly sandstone formation with interbedded shales and siltstones dates to the Early Cretaceous period; Albian epoch and has a thickness in the type oil well of {{convert|343|m|ft}}. EtymologyThe formation is named after the city of Florianópolis, Santa Catarina. DescriptionThe Florianópolis Formation is {{convert|343|m|ft}} thick in the type oil well, and consists of reddish, fine to coarse-grained sandstones with a clay matrix, reddish micaceous shales and siltstones. These clastic units are thought to represent alluvial environments distributed along the western Brazilian basin margin, along the Santos Hinge Line. These alluvial environments were gradational towards the east, with the shallow marine carbonates of the Guarujá Formation, and further to the open basin with the siltstones of the Itanhaém Formation. Biostratigraphical data and its relations with the Guarujá Formation point towards an Albian age.[1] The formation is laterally equivalent to the Goitacás Formation of the Campos Basin to the north.[2] The formation is the reservoir rock of the Pirapitanga Field in the Santos Basin.[3] See also{{portal|Brazil|Cretaceous|Geology|Prehistory of South America}}
References1. ^Clemente, 2013, p.22 2. ^Contreras, 2011, p.102 3. ^Vieira, 2007, p.9 Bibliography
15 : Geologic formations of Brazil|Santos Basin|Cretaceous Brazil|Lower Cretaceous Series of South America|Albian Stage|Sandstone formations|Shale formations|Siltstone formations|Alluvial deposits|Reservoir rock formations|Petroleum in Brazil|Geography of Paraná (state)|Geography of Rio de Janeiro (state)|Geography of Santa Catarina (state)|Geography of São Paulo (state) |
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