No description available.

A 3-D seismic volume, wireline logs and core data were integrated to determine the spatial distribution of porous reservoirs within the Wolfcampian-Leonardian detrital carbonate slope and basin strata in Glasscock County, Texas. A 3-D seismic amplitude volume was used to construct a seismic facies analysis of the detrital carbonate section, and generated attribute volumes helped identify detrital carbonate depositional trends, as well as establish a potential correlation between thick detrital carbonate intervals and associated amplitude response. Eight lithofacies were identified in core and were subsequently classified into three main facies: debris flow, grain flow/turbidite, and basinal shale. A facies type log was then created, which was used to supervise the creation of facies logs within other wells to ultimately use in the creation of a 3-D facies model. Cross sections through the study area show an increase in bathymetric relief beginning in Wolfcampian time and continuing through the Leonardian. Detrital carbonate deposition increases dramatically during the Leonardian, consisting of large gravity flows deposited basinward in a northwest-southeast linear trend, rapidly thinning basinward. Individual flows are discontinuous and bounded by basinal shale facies. Four seismic facies were identified within the interval of interest using a structurally smoothed attribute volume, while an RMS amplitude attribute volume provided a correlation between high RMS amplitude values and detrital carbonate thickness. A high RMS amplitude value corresponding to the debris flow facies was extracted from the RMS attribute volume in the form of a seismic geobody. Two facies models and one porosity model were generated by using upscaled values from the gamma ray, total porosity, and lithofacies logs, which were applied over areas with the densest well control. Although the facies model populated from upscaled GR values was useful in stratigraphic interpretation, it is determined that the models should be applied over areas with denser well spacing in order to provide a more accurate and geologically viable subsurface model.

Thesis (M.S.)--University of Michigan, 1982.

The purpose of this study was to compare industrial arts and non-industrial arts students in Midland High School, Midland, Texas. Data were gathered and analyzed to compare industrial arts and non-industrial arts students' chronological ages, family background, I. Q, scores and percentile rankings from intelligence tests, final grade point averages, vocational interests as described by the Kuder Occupational Interest Survey, vocational and educational ambitions, hobby interests, and reasons for election or non-election of industrial arts.

This thesis focuses on Litchurch, the railway suburb of Derby, the headquarters of the Midland Railway Company and its workforce, during the period 1840-1900, It examines the consequences of factory paternalism and company loyalty for the construction of 'community', exploring the connections between work, family, and wider social and political life. It begins by looking at Derby as a county town where an early alliance between Whigs and Liberals resulted in the political dominance of the town by a group of Liberal-radical textile manufacturers as a form of extended factory village. There is then a discussion of railway paternalism which investigates the many differences between the family firm and the corporate railway company. The relationship between the railways and the state is examined, through the twin theorization of the railway within the state-intrinsic to national integrity and as a state in microcosm- a form of space management derived from military and civil government. The role of Derby as headquarters of the M.R.is then considered: its decision making and service function; the technological mix of productive techniques; and the distinctive relationship between public and private space. A model of company loyalty based on the experience of the physical and organizational space of the railway company is developed through the notions of the career and the appropriation to the self of organisational space, the 'bailiwick'. The spatial and social structure of Litchurch is examined and its marriage and residence patterns. In the discussion of social institutions, churches, recreation and self-help, the tensions are explored between vertical integration and horizontal stratification which are intrinsic to corporate culture. The extent and limits of collective action in terms of local and national consciousness are then considered. A model of community is then proposed, founded on the routine practices of everyday life, which recognises the multiplicity of motivations and experiences subsumed within the symbolic affirmations of collective solidarity. It concludes with an examination of the antagonism between the county town of Derby, with its history and expectations of paternal intervention, and the corporate Midland Railway 1 which was economically, socially and politically independent of local systems.

The economics of ranches in the Zimbabwe Midlands, generating income from cattle, or wildlife, or both, were compared during 1989/90 to test the claim that wildlife ranching can generate greater profits than cattle ranching on semi-arid African savannas. Both financial (market) prices and economic prices (opportunity cost) were used. Financial data were obtained from 15 cattle, 7 wildlife and 13 mixed ranches in four areas with wildlife and from 15 cattle ranches in two areas with sparse wildlife. Estimates of economic prices were obtained from official data. In the first paper, gross revenues, costs, net revenues, and capital investments of each ranch type were compared. Cattle ranches in the areas with sparse wildlife provided the greatest net revenues while only mixed ranches were financially profitable in areas with abundant wildlife. Wildlife ranches had the least capital investments. In the second paper a policy analysis matrix was used to compare financial and economic profitability. Excluding policy interventions, cattle ranches in areas with sparse wildlife were most profitable. Negative financial-economic profit differences showed that all ranchers faced production disincentives, but cattle ranchers were affected the most. In the third paper an attempt was made to quantify the cost of lost rangeland productivity due to overstocking. Carrying capacities and stocking rates were estimated and a range of overstocking costs was used. Cattle ranches appeared to be overstocked while wildlife ranches were not. Thus the larger economic profit of cattle versus wildlife ranches decreased when range productivity loss increased. The last paper compared the relative efficiency of cattle, wildlife, and mixed ranches from the financial perspective (using the private cost ratio) and from the national perspective (using the domestic resource cost). While few ranches were financially efficient, cattle ranches with sparse wildlife and mixed and wildlife operations were found to be economically efficient when overstocking costs were not charged. With increased rangeland sensitivity to overstocking, the probability of economic inefficiency increased more for cattle than mixed or wildlife ranches. This study did not corroborate the claim that wildlife ranching is more profitable or efficient than cattle ranching in semi-arid African savannas.

The nose of the Eastern shelf of the Midland Basin is a prominent structural and depositional feature present in Glasscock, Sterling, and Howard counties, Texas. This feature has been expressed in many regional maps and mentioned in some literature, but has not otherwise been studied significantly. This study looks at the viability of using an acoustic impedance seismic inversion to interpret the 2nd and 3rd order sequence stratigraphy of the southern portion of the nose of the Eastern shelf along with its shelf to basin transition in Glasscock, Sterling, and Reagan counties during the Wolfcampian (Asselian-Sakmarian) time (Early Permian). The Wolfcamp Formation (Wolfcampian-Leonardian) was subdivided into six units based on regionally mapped shale markers that correlate with 3rd order sequence boundaries. These horizons were mapped throughout the study area utilizing 3D seismic data and well logs. Analysis of seismic amplitude and inversion (acoustic impedance) volumes, along with well logs were then used to create a 2nd and 3rd order sequence stratigraphic framework in the study area. Six 3rd order sequences and two 2nd order sequences were identified in the study area during the Wolfcampian. From this framework a 2nd order sea-level curve was developed. The oldest Wolfcampian 3rd order sequence is marked by sediment bypass of the shelf and slope into the basin during a 3rd order sea level fall. Shelfal deposition resumed during subsequent sequences as sea-level rose and carbonate production resumed. Carbonate production increased during sequences four through six as part of a 2nd order sea-level highstand. During this highstand the nose of the Eastern shelf grew vertically increasing the gradient of the slope from less than 1° to 3.5°. The end of Wolfcampian deposition is marked by a large number of gravity flows into the basin resulting from subaerial exposure and erosion after a second order sea-level fall.

No description available.

Midland, Ontario, derived its name from its location approximately half way between Toronto and North Bay, and within sixty miles of the central point of a direct line between Windsor and Montreal. Eight thousand permanent residents live in the town which, in spite of a late beginning, has surpassed all other neighbouring communities both in size and in importance. It is the objective of this study to discover the geographic character of Midland. Broad aspects such as land-lake relationship, relationships to other centres of population, etc., are considered; a detailed study of the town itself, in order to note how each division is fitted into the overall scheme of town organization, is carried out; the functions of the town and on what these functions are based, are noted. From these facts, conclusions are drawn as to the stability of the town and its influence on the surrounding district, now, and in the future. / Thesis / Master of Arts in Teaching (MAT)

The Late Pennsylvanian was a time of frequent, rapid glacioeustatic sea-level changes. These changes were recorded in the Wolfcamp D Formation of the Midland Basin as a series of cyclothems similar to those studied in the Midcontinent region (e.g., Algeo and Heckel, 2008). This study focuses on identifying the mechanisms and controls on carbonate deposition and diagenesis through the Upper Pennsylvanian Wolfcamp D Formation and evaluating the potential for these layers to be stratigraphically significant. A stepwise progression of diagenetic processes was identified through the use of δ13Ccarb and δ18Ocarb, bulk geochemical and petrographic analysis, and scanning electron microscopy. Carbonate deposition and early-burial diagenesis appears to be strongly influenced by frequent changes in sea-level and benthic redox conditions. The transition to deep-burial diagenesis was controlled by the thermal gradient in the basin and the extent of diagenesis by the amount of clays and organic matter in the surrounding mudrocks. Further diagenesis was induced through interactions with a brine following clay diagenesis. The presence of multiple phases of diagenesis in this system further highlights the need for several lines of inquiry when evaluating the post-depositional evolution of carbonates in a mud-rich setting.