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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Erosion-deposition linkages in small Pennine lake-catchement ecosystems

Kelly, Liam Aelred January 1989 (has links)
No description available.
2

Structure and genesis of the South Pennine orefield

Quirk, David Gordon January 1987 (has links)
Mineralisation in the South Pennine MVT orefield (225km2) has resulted from the combined effects of basement structure, stress history and basin evolution during the Carboniferous. NW-SE-trending Caledonian thrusts in the basement beneath North Derbyshire were reactivated as normal growth faults during limestone sedimentation in the Dinantian. on a regional scale, a major low-angle detachment, dipping NE away from St. George's Land (20km to the SW of North Derbyshire), controlled basin development as far as the Askern-Spital High (100km to the NE). The North Derbyshire shelf developed on the up-dip crest of a NE-tilted half-graben, in the hanging wall of this detachment, directly above the zone of mantle upwelling. A similar structure also evolved in the Rotherham area, some 40km to the NE, where, it is inferred, another orefield exists in the subsurface. In North Derbyshire, the end of the Dinantian was a period of uplift and erosion. In the NE part of the shelf, dextral wrench faults developed above ENE-WSW-trending basement fractures. At the start of the Namurian the direction of extension rotated to NW-SE and by the end of the Westphalian the limestone was buried to a depth of about 2km (~130°C) due to the combined effects of thermal sag and sediment compaction. Mineralisation began in the early Stephanian, associated with a period of N-S extension. Fractures in the limestone formed during earlier tectonic events began to dilate, thus allowing inflow of acidic F-Ba-Pb-zn-S-enriched fluid expelled from overlying Namurian shales. This was replenished by meteoric water migrating westwards down-dip from the uplifted Askern-Spital-Nocton-Grantham High. Ore deposition occurred within the limestone as a result of increasing pH, Ca 2+ and SO42 in the orefluid due to wallrock dissolution and fluid mixing. Mineralisation probably continues in the subsurface for some distance to the SE of the South Pennine orefield in shallow-water limestones with a similar structural aspect to those exposed in North Derbyshire.
3

Runoff and sediment production in blanket peat moorland studies in the Southern Pennines

Labadz, J. C. January 1988 (has links)
No description available.
4

Interactions between human industry and woodland ecology in the South Pennines

Lewis, Hywel January 2019 (has links)
This research project used many disciplines to examine the impacts of industrialisation on the wooded landscape of the South Pennines. The woodlands of this upland region are characterised by their small size and steep topography. Nevertheless, they exhibit a rich archaeology of management from the medieval period onwards. Field survey of case study sites was combined with charcoal analysis from excavated burning platforms, palynology of soil cores, tree ring analysis and ecological survey. This was set within a historical context, particularly focusing on the regional industries of iron, leather and textiles, in order to understand the economic motivations for changes in woodland management. The woodlands examined showed a diverse range of histories. Some had a strong correlation with models of changing woodland management culture of neighbouring regions, particularly the evolution of systematic oak-dominated coppice in response to industrial demands. Woodland management in the South Pennines was more sensitive to industries which created dispersed demand from many actors than to bulk demand from centralised industries and responded to the changing economics of the fossil fuel era. The dominance of freehold tenure also contributed to many woodlands being managed in an unsystematic manner and the survival of private wood pasture alongside timber harvesting. / Arts and Humanities Research Council through the Heritage Consortium

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