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Benthic fluxes at Sta2July81 (2002)

Flint, R W ; Kamykowski, Daniel ; Flint, Warren R

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Publication Date: 2023-02-24

Keywords: DEPTH, sediment/rock; Flint_Sta2July81_ISBFC; Gulf of Mexico/COASTAL WATERS; Incubation of bottom water, in-situ; In situ benthic flux chamber; ISBFC; ORFOIS; Origin and Fate of Biogenic Particle Fluxes in the Ocean; Oxygen; Oxygen, flux, sediment oxygen demand; Sta2July81; Temperature, water; W9106A; Wecoma

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Format: text/tab-separated-values, 3 data points

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Benthic fluxes at Sta2Oct81 (2002)

Flint, R W ; Kamykowski, Daniel ; Flint, Warren R

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Publication Date: 2023-02-24

Keywords: DEPTH, sediment/rock; Flint_Sta2Okt81_ISBFC; Gulf of Mexico/COASTAL WATERS; Incubation of bottom water, in-situ; In situ benthic flux chamber; ISBFC; ORFOIS; Origin and Fate of Biogenic Particle Fluxes in the Ocean; Oxygen; Oxygen, flux, sediment oxygen demand; Sta2Okt81; Temperature, water; W9106A; Wecoma

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Format: text/tab-separated-values, 3 data points

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Benthic fluxes at Sta2July82 (2002)

Flint, R W ; Kamykowski, Daniel ; Flint, Warren R

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Publication Date: 2023-02-24

Keywords: DEPTH, sediment/rock; Flint_Sta2July82_ISBFC; Gulf of Mexico/COASTAL WATERS; Incubation of bottom water, in-situ; In situ benthic flux chamber; ISBFC; ORFOIS; Origin and Fate of Biogenic Particle Fluxes in the Ocean; Oxygen, flux, sediment oxygen demand; Sta2July82; W9106A; Wecoma

Type: Dataset

Format: text/tab-separated-values, 1 data points

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Benthic fluxes at Sta2Jan83 (2002)

Flint, R W ; Kamykowski, Daniel ; Flint, Warren R

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Publication Date: 2023-02-24

Keywords: DEPTH, sediment/rock; Flint_Sta2Jan83_ISBFC; Gulf of Mexico/COASTAL WATERS; Incubation of bottom water, in-situ; In situ benthic flux chamber; ISBFC; ORFOIS; Origin and Fate of Biogenic Particle Fluxes in the Ocean; Oxygen, flux, sediment oxygen demand; Sta2Jan83; W9106A; Wecoma

Type: Dataset

Format: text/tab-separated-values, 1 data points

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5

Electronic Resource

Interdisciplinary education in sustainability: links in secondary and higher education: The Northampton Legacy Program (2000)

Flint, R. Warren ; McCarter, William ; Bonniwell, Thomas

Bingley : Emerald

International journal of sustainability in higher education 1 (2000), S. 191-202

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ISSN: 1467-6370

Source: Emerald Fulltext Archive Database 1994-2005

Topics: Energy, Environment Protection, Nuclear Power Engineering , Education

Notes: Describes The Northampton Environmental Legacy Program, which links studies of the historic culture of Eastern Shore life with an awareness and understanding for the importance of environmental quality in this region. Over the six years' duration of this pilot program, instructors have found that when this unique environmental/cultural instruction process is superimposed on an interdisciplinary blend of traditional high school teaching (math, science, language, literature, history, etc.), the students' learning experiences are put into a context much more aligned to their life experiences. Program results have been significant. Because of the success of this program, a strong message is being sent to institutions of higher education. In preparation of future teachers, college/university curricula will need to offer an opportunity for developing exceptional skills in interdisciplinary teaching, so that new teachers can move seamlessly into high school programs already developed along the lines of the sustainable education model described here, and equally important will be the training of future teachers who can develop these new programs of education in sustainability at the high school level, where they do not yet exist.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1108/1467630010328261

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Rapid non-contacting resistivity logging of core (2007)

Jackson, P. D. ; Lovell, M. A. ; Roberts, J. A. ; [et al.]

In: Geological Society Special Publication 267: 209-217.

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Publication Date: 2007-10-08

Description: We demonstrate a non-contact approach to whole-core and split-core resistivity measurements, imaging a 15 mm-thick, dipping, conductive layer, producing a continuous log of the whole core and enabling the development of a framework to allow representative plugs to be taken, for example. Applications include mapping subtle changes in grain fabric (e.g. grain shape) caused by variable sedimentation rates, for example, as well as the well-known dependencies on porosity and water saturation. The method operates at relatively low frequencies (i.e. low induction numbers), needing highly sensitive coil pairs to provide resistivity measurements at the desired resolution. A four-coil arrangement of two pairs of transmitter and receiver coils is used to stabilize the measurement. One coil pair' acts as a control, enabling the effects of local environmental variations, which can be considerable, to be removed from the measurement at source. Comparing our non-contact approach and independent traditional galvanic' resistivity measurements indicates that the non-contact measurements are directly proportional to the reciprocal of the sample resistivity (i.e. conductivity). The depth of investigation is discussed in terms of both theory and practical measurements, and the response of the technique to a variety of synthetic structures' is presented. We demonstrate the potential of the technique for rapid electrical imaging of core and present a whole-core image of a dipping layer with azimuthal discrimination at a resolution of the order of 10 mm. Consequently, the technique could be used to investigate different depths within the core, in agreement with theoretical predictions.

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Fracture mapping with electrical core images (2007)

Lovell, M. ; Jackson, P. ; Flint, R. ; [et al.]

In: Geological Society Special Publication 240: 107-115.

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Publication Date: 2007-10-08

Description: Naturally fractured reservoirs often contain a range of different fracture types and networks; fractures that are relatively permeable and relatively impermeable, unconnected and connected to the part of the fracture network that carries fluid flow, and naturally occurring or drilling induced. Consequently, in terms of their fluid connectivity, fractures may be open or closed, while individual fractures may be isolated or well connected. We have adapted our approach to imaging sedimentary fabric in the laboratory, where we related electrical core images to properties such as porosity, permeability, grain size and cementation, to enable electrical imaging of fractures in core. Our approach uses similar principles to those employed in down-hole electrical imaging. The results demonstrate an ability to image conductive fractures in fully saturated low-porosity water-bearing core: these fractures being electrically connected from the flat measurement surface through to the outer surface of the core. Published results for numerical modelling of down-hole electrical imaging tools show the electrical response is related to fracture depth and fracture aperture. Our experimental results on fractured core in the laboratory support these numerical observations, increased current flowing into the fracture as the aperture increases. The finite size of the electrode, however, means that this technique cannot distinguish between a single fracture and smaller groups of fractures intersecting the electrode.

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8

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High-resolution petrophysical characterization of samples from an aeolian sandstone: the Permian Penrith sandstone of NW England (2007)

Lovell, M. A. ; Jackson, P. D. ; Harvey, P. K. ; [et al.]

In: Geological Society Special Publication 263: 49-63.

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Publication Date: 2007-10-08

Description: The Penrith Sandstone is an orange/red, mainly homogeneous, friable rock made up of well-rounded, highly spherical quartz grains, often showing euhedral overgrowths of quartz. Sandstone samples from Stoneraise Quarry, NW England, exhibit a remarkable degree of rounding and very high sphericity, along with frosted textures typical of aeolian deposits. Chemically, the rock is predominantly SiO2 (〉95%), with no evidence of carbonate cements. Quartz predominates with a small proportion (10%) of feldspar. The grain size across heterogeneous zones varies from very fine (100 {micro}m) to coarse sand (700 {micro}m). There is no evidence of the presence of clay minerals. Petrophysically, based on the measurements made in this study, the Penrith Sandstone is a typical clean sandstone characterized by moderate porosity (12%) and core-plug permeability (10-14-10-12 m2), and Archie m' exponents between 1.90 and 1.91, suggesting a reasonably clean Archie' rock with no excess conductivity associated with clays or bound water. Capillary pressure curves for four samples demonstrate unimodal pore-size distributions with a single modal range that varies between 25-50 and 70-80 {micro}m. Because of the relative simplicity of its petrophysics, the sandstone is thus potentially very useful in fundamental studies, and also in the trialling of new techniques. We use imaging techniques to investigate the degree of heterogeneity and the fabric of the Penrith Sandstone. Conventional optical images are complemented by electrical resistivity, porosity and mini-permeametry images. These two-dimensional maps of resolution of approximately 5 mm show a spatial similarity determined by the rock fabric. The detailed images show a wider degree of variation and heterogeneity than the plug-averaged values. The success of the resistivity imaging method suggests that the technique could be used in deriving correlations that could be used to interpret borehole resistivity imaging logs. However, in the present study, correlations of property values derived from the imaging do show considerable scatter: this suggests that heterogeneity even below the scale of the imaging is also important, a conclusion supported by thin-section and electronmicroscope data.

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