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The Great Glen Fault is a long strike-slip fault that runs through its namesake, the Great Glen, in Scotland.
Induced seismicity refers to typically minor earthquakes and tremors that are caused by human activity that alters the stresses and strains on the Earth's crust. Most induced seismicity is of a low magnitude. A few sites regularly have larger quakes, such as The Geysers geothermal plant in California which averaged two M4 events and 15 M3 events every year from 2004 to 2009. The Human-Induced Earthquake Database (HiQuake) documents all reported cases of induced seismicity proposed on scientific grounds and is the most complete compilation of its kind.
Port Radium is a mining area on the eastern shore of Great Bear Lake, Northwest Territories, Canada. It included the settlement of Cameron Bay as well as the Eldorado and Echo Bay mines. The name Port Radium did not come into use until 1936 and at the time it was in reference to the region as a whole. The Eldorado mine site at LaBine Point adopted the name for its settlement in the 1940s and it has generally stuck.
A monocline is a step-like fold in rock strata consisting of a zone of steeper dip within an otherwise horizontal or gently-dipping sequence.
The Cerberus Fossae are a series of semi-parallel fissures on Mars formed by faults which pulled the crust apart in the Cerberus region. They are 1235 km across and centered at 11.28 °N and 166.37 °E. Their northernmost latitude is 16.16 °N and their southernmost latitude 6.23 °N. Their easternmost and westernmost longitudes are 174.72 °E and 154.43 °E, respectively. They can be seen in the Elysium quadrangle.
The Chino Fault extends along the eastern Chino Hills range region, from Corona in Riverside County to the Los Serranos, Chino Hills area of San Bernardino County in Southern California.
Maes y Facrell National Nature Reserve sits high above the coastal town of Llandudno on the Great Orme headland, in the county of Conwy, Wales. It commands sweeping views of Conwy Bay, and the mountains of Snowdonia.
The Chixoy-Polochic Fault, also known as Cuilco-Chixoy-Polochic Fault, is a major fault zone in Guatemala and southwestern Mexico. It runs in a light arc from the east coast of Guatemala to Chiapas, following the deep valleys of the Polochic River, Chixoy River and Cuilco River.
Pentremawr Colliery was a coal mine, located in the Gwendraeth valley in Carmarthenshire, South Wales.
Cardiff is a hamlet in central Alberta, Canada within Sturgeon County. It is located 3 kilometres (1.9 mi) east of Highway 2, approximately 15 kilometres (9.3 mi) north of Edmonton's city limits. The Town of Morinville is 1.6 kilometres (0.99 mi) to the west of Cardiff.
Esclusham Mountain is an area within Wrexham county, United Kingdom, and is part of the Ruabon Moors. It rises to a height of 460 m, with the nearby spur of Cyrn-y-Brain, to the west, reaching 473 m. It lies mostly within the community of Esclusham. A smaller spur to the north, known as Minera Mountain, is within the neighbouring community of Minera.
The Aber Dinlle Fault is a SW-NE trending fault in North Wales. It forms part of the Menai Strait Fault System, with the Berw and Dinorwic Faults. It lies close to the epicentre of the 1984 Llŷn Peninsula earthquake, although it is not thought to have been responsible for that event. The fault was active during deposition of Ordovician rocks in the Welsh Basin. It was reactivated as a normal fault in the Carboniferous with a downthrow to the northwest and again reactivated as a reverse fault during Late Carboniferous inversion associated with the Variscan Orogeny.
The Berw Fault is a SW-NE trending fault in North Wales. It forms part of the Menai Strait Fault System, with the Dinorwic Fault and the Aber Dinlle Fault. It has a long history of movement with early ductile fabrics preserved from a sinistral strike-slip sense shear zone active at the end of the Precambrian and into the early Cambrian. Any Caledonian deformation is unclear but the fault zone was reactivated in the Carboniferous as a NW-throwing normal fault with seismic reflection data showing the formation of a half-graben in its hanging wall. There are no indications of inversion during the Variscan Orogeny, but the fault was reactivated in a normal sense during the Permian and Triassic and again during the Cenozoic with a sinistral strike-slip sense.
The Carmel Head Thrust is a geological fault on the northern part of the island of Anglesey in North Wales, where rocks of the Precambrian Mona Complex are thrust over Lower Paleozoic sedimentary rocks.
The Aire Valley Fault is an inactive strike slip fault in Yorkshire, England. It is considered a northwestern continuation of the Morley-Campsall Fault Belt and extends northwards from the Huddersfield and Wakefield area into the South Craven fault. It is connected to the Denholme Clough Fault.
Llanfihangel Ysgeifiog is a community and former ecclesiastical parish in Anglesey, Wales, east of Llangefni.
The Worcester Basin or Worcester Graben is a sedimentary basin in central England, filled with mainly Permian and Triassic rocks. It trends roughly north-south and lies between the East Malverns Fault in the west and the Inkberrow Fault in the east. It forms part of a series of Permo-Triassic basins that stretch north-south across England, including the Cheshire Basin and the East Irish Sea Basin. These basins resulted from a regional rifting event that affected parts of North-West Europe, eastern North America and East Greenland.
The Burnley Coalfield is the most northerly portion of the Lancashire Coalfield. Surrounding Burnley, Nelson, Blackburn and Accrington, it is separated from the larger southern part by an area of Millstone Grit that forms the Rossendale anticline. Occupying a syncline, it stretches from Blackburn past Colne to the Yorkshire border where its eastern flank is the Pennine anticline.
Hapton Valley Colliery was a coal mine on the edge of Hapton near Burnley in Lancashire, England. Its first shafts were sunk in the early 1850s and it had a life of almost 130 years, surviving to be the last deep mine operating on the Burnley Coalfield.
References
- ↑ Agnew, J.L. (1989). "The Hafod-y-Porth copper mine" (PDF). Bulletin of the Peak District Mines Historical Society. 10 (6): 359–367. Archived from the original (PDF) on 27 July 2011. Retrieved 18 December 2010.
Coordinates: 53°01′N4°05′W / 53.01°N 4.08°W
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