en Geology of the Collectivity of Saint Martin

The geology of the Collectivity of Saint Martin consists of andesite tuff and tuff breccia from the middle and late Eocene, intruded by hypabyssal basalt, quartz diorite and younger andesite. Volcanic activity led to metamorphism of many rocks and the tilting and folding of the tuff series. Limestone and marl was later unconformably deposited atop the eroded volcanic rocks as volcanic activity shifted elsewhere.^[1] Large boulder ridges and solitary boulders on high cliffs suggest tectonic-related tsunamis.^[2]

References

^ Christman, Robert A. (January 1953). "Geology of St. Bartholomew, St. Martin, and Anguilla, Lesser Antilles". GSA Bulletin. 64 (1): 65–96. Bibcode:1953GSAB...64...85C. doi:10.1130/0016-7606(1953)64[85:GOSBSM]2.0.CO;2. Retrieved 2018-11-09.
^ Scheffers, Anja; Kelletat, Dieter (2006). "New Evidence and Datings of Holocene Paleo-Tsunami Events in the Caribbean (Barbados, St. Martin and Anguilla)". Caribbean Tsunami Hazard. pp. 178–202. doi:10.1142/9789812774613_0008. ISBN 978-981-256-535-8.

Geology of the Caribbean

West
Indies

Antilles

Greater
Antilles

Hispaniola	Dominican Republic Haiti

Lesser
Antilles

Leeward
Islands

Anguilla
Antigua and Barbuda
Guadeloupe
- La Désirade
- Les Saintes
- Marie-Galante
Montserrat
Saba^{^*}
Saint Barthélemy
Saint Kitts and Nevis
Sint Eustatius^{^*}

Saint Martin^{^}	Collectivity of Saint Martin Sint Maarten
Virgin Islands	British Virgin Islands U.S. Virgin Islands

Southern
Caribbean

Leeward
Antilles

Insular Venezuela
- Federal Dependencies
- Nueva Esparta

ABC islands	Aruba Bonaire^* Curaçao

Windward
Islands

Barbados^†
Trinidad and Tobago^†

Lucayan
Archipelago

Bahamas

Turks and Caicos Islands

Caribbean
Sea

Aves Island
San Andrés and Providencia
- Bajo Nuevo Bank^~
- Serranilla Bank^~

Caribbean
continental
zone

Quintana Roo
- Cozumel

Central America	Belize Honduras Bay Islands Izabal Limón Corn Islands North Caribbean Coast South Caribbean Coast Panama
South America	Colombian Caribbean Venezuelan Caribbean

Wider
groupings
may include:

Yucatán Peninsula	Campeche Petén Yucatán
The Guianas	Amapá French Guiana Venezuelan Guayana Guyana Guayana Esequiba^ǂ Tigri Area^ǂ Suriname

N.B.: Territories in italics are parts of transregional sovereign states or non-sovereign dependencies.

^{^}These three form the SSS islands that with the ABC islands comprise the Dutch Caribbean, of which ^*the BES islands are not direct Kingdom constituents but subsumed with the country of the Netherlands.

^†Physiographically, these continental islands are not part of the volcanic Windward Islands arc, although sometimes grouped with them culturally and politically.

^ǂDisputed territories administered by Guyana. ^~Disputed territories administered by Colombia.

^#Bermuda is an isolated North Atlantic oceanic island, physiographically not part of the Lucayan Archipelago, Antilles, Caribbean Sea nor North American continental nor South American continental islands. It is grouped with the Northern American region, but occasionally also with the Caribbean region culturally.

v t e Geology of North America
Sovereign states	Antigua and Barbuda Bahamas Barbados Belize Canada Costa Rica Cuba Dominica Dominican Republic El Salvador Grenada Guatemala Haiti Honduras Jamaica Mexico Nicaragua Panama Saint Kitts and Nevis Saint Lucia Saint Vincent and the Grenadines Trinidad and Tobago United States
Dependencies and other territories	Anguilla Aruba Bermuda Bonaire British Virgin Islands Cayman Islands Curaçao Greenland Guadeloupe Martinique Montserrat Puerto Rico Saint Barthélemy Saint Martin Saint Pierre and Miquelon Saba Sint Eustatius Sint Maarten Turks and Caicos Islands United States Virgin Islands

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