The Great Lakes tectonic zone (GLTZ) is bounded by South Dakota at its tip and heads northeast to south of Duluth, Minnesota, then heads east through northern Wisconsin, Marquette, Michigan, and then trends more northeasterly to skim the northernmost shores of lakes.
Algoman orogeny added landmass to the Superior province by volcanic activity and continental collision along a boundary that stretches from present-day South Dakota, U.S., into the Lake Huron region near Sudbury, Ontario, Canada.
It is 1,400 km (870 mi) long, and separates the older Archean gneissic terrane to the south from younger Late Archean greenstone-granite terrane to the north.
The zone is characterized by active compression during the Algoman orogeny (about 2,700 million years ago), a pulling-apart (extensional) tectonics (2,450 to 2,100 million years ago), a second compression during the Penokean orogeny (1,900 to 1,850 million years ago), a second extension during Middle Proterozoic time (1,600 million years ago) and minor reactivation during Phanerozoic time (the past 500 million years).
Collision began along the Great Lakes tectonic zone with the Algoman mountain-building event and continued for tens of millions of years. During the formation of the GLTZ, the gneissic Minnesota River Valley subprovince was thrust up onto the Superior province's edge as it consumed the Superior province's oceanic crust. Fragmentation of the Kenorland supercontinent began 2,450 million years ago and was completed by 2,100 million years ago. The Wyoming province is the continental landmass that is hypothesized to have rifted away from the southern Superior province portion of Kenorland, before moving rapidly west and docking with the Laurentia supercontinent 1,850 to 1,715 million years ago. Sedimentation from the GLTZ-rifting environment continued into the Penokean orogeny, which is the next major tectonic event in the Great Lakes region. Several earthquakes have been documented in Minnesota, Michigan's Upper Peninsula and Sudbury in the last 120 years along the GLTZ.
and 24 Related for: Great Lakes tectonic zone information
The GreatLakes (French: Grands Lacs), also called the GreatLakes of North America, are a series of large interconnected freshwater lakes in the east-central...
African GreatLakes (Swahili: Maziwa Makuu; Kinyarwanda: Ibiyaga bigari) are a series of lakes constituting the part of the Rift Valley lakes in and around...
Quaternary period. Ancient lakes continue to persist due to plate tectonics in an active rift zone. This active rift zone creates lakes that are extremely deep...
of about 1,900 km (1,200 mi). The Grenville front tectoniczone: Results from the 1986 GreatLakes onshore seismic wide-angle reflection and refraction...
list every notable fault, but only major fault zones.[clarification needed] Lists of earthquakes Tectonics Yeats, R. (2012), Active Faults of the World...
Superior region. Sediments associated with the last stage of the GreatLakestectoniczone contain banded-iron formations. These sediments were deposited...
the Grenville Front Tectonic Zone and the eastern end of the Great LakesTectonicZone, but the structures are not directly related to one another in the...
be part of a larger Great Rift Valley that extended north to Asia Minor. A narrow zone, the rift is a developing divergent tectonic plate boundary where...
Tectonic uplift is the geologic uplift of Earth's surface that is attributed to plate tectonics. While isostatic response is important, an increase in...
Great Prespa Lake, divided between the three countries, and the Little Prespa Lake, mostly within Greece. They are the highest tectoniclakes in the Balkans...
current boundary between these terranes is known as the GreatLakestectoniczone (GLTZ). This zone is 50 km (30 mi) wide and extends in a line roughly 1...
misspelling. Other names for the lakes in Death Valley are "Death Valley Pleistocene lakes" and "Death Valley Lake", a name first used in a publication...
and a prolific source of intraplate earthquakes (earthquakes within a tectonic plate) in the Southern and Midwestern United States, stretching to the...
light, while lakes do not. In addition, some lakes become seasonally stratified. Ponds and pools have two regions: the pelagic open water zone, and the benthic...
Springs Valley Fault, and the Pyramid Lake Fault Zone meet the transverse tectoniczone forming the southern boundary of the Modoc Plateau and Columbia Plateau...
Andreas Fault in central and southern California. Tectonic processes active in the Cascadia subduction zone region include accretion, subduction, deep earthquakes...
Lake Burdur (Turkish: Burdur Gölü) is a large saline lake of tectonic origin, positioned at the frontier between Burdur and Isparta provinces in southwestern...
the Rim of Fire, the Girdle of Fire or the Circum-Pacific belt) is a tectonic belt of volcanoes and earthquakes. It is about 40,000 km (25,000 mi) long...
information Defusing Africa’s Killer Lakes – Smithsonian Gas threat grows from Cameroon's lethal lakes — The Guardian Lake Nyos – The Vanguard, Cameroon Archived...
Global Information