Results 11 to 20 of about 203,697 (195)

Tracing groundwater flow and sources of organic carbon in sandstone aquifers using fluorescence properties of dissolved organic matter (DOM) [PDF]

, 2008
The fluorescence properties of groundwaters from sites in two UK aquifers, the Penrith Sandstone of Cumbria and the Sherwood Sandstone of South Yorkshire, were investigated using excitation-emission matrix (EEM) fluorescence spectroscopy.
D.J. Lapworth, D.C. Gooddy, A.S. Butcher, B.L. Morris, Baker, Baker, Baker, Baker, Benedetti, Bloomfield, Cannavo, Coble, Cory, Cronin, Gooddy, Gooddy, Gooddy, Hall, Harden, Holbrook, Kelleher, Klapper, Laane, Leenheer, Manning, Mariot, McCarthy, McKnight, McKnight, Morris, Ohno, Patel-Sorrentino, Plummer, Price, Reynolds, Rueedi, Senesi, Senesi, Sierra, Szabo, Thurman, Wang   +41 more
core   +2 more sources

Evidence of Springwater Acidification in the Vosges Mountains (North-East of France): Influence of Bedrock Buffering Capacity [PDF]

, 1999
Investigations on springwater acidity were carried out in the Vosges mountains (north-eastern France). Acid or poorly buffered spring and streamwaters were detected in the same area.
Dambrine, Etienne, Février, Clotilde, Party, Jean-Paul, Probst, Anne, Stussi, J.M., Thomas, Anne-Laure   +5 more
core   +2 more sources

Impact pressures generated by spherical particle hypervelocity impact on Yorkshire Sandstone [PDF]

, 2007
Hypervelocity impact tests were carried out at 4.8 km/s using the Open University's All Axis Light Gas Gun (AALGG) in the Planetary and Space Sciences Research Institute (PSSRI)'s Hypervelocity Impact Laboratory.
Cockell, C. S., Miljkovic, K., Proud, W. G., Taylor, E. A., Tsembelis, K., Zarnecki, J. C.   +5 more
core   +1 more source

Relating pore fabric geometry to acoustic and permeability anisotropy in Crab Orchard Sandstone: A laboratory study using magnetic ferrofluid [PDF]

, 2003
Pore fabric anisotropy is a common feature of many sedimentary rocks. In this paper we report results from a comparative study on the anisotropy of a porous sandstone (Crab Orchard) using anisotropy of magnetic susceptibility (AMS), acoustic wave ...
Benson, PM, Meredith, PG, Platzman, ES
core   +1 more source

Emplacement of sandstone intrusions during contractional tectonics [PDF]

, 2016
Acknowledgments We acknowledge the support of sponsoring companies of Phase 3 of the Sand Injection Research Group (SIRG). We are very grateful to John Waldron and Jessica Ross for the constructive reviews of the manuscript.
Alsop, G. Ian, Bureau, Denis, Grippa, Antonio, Hurst, Andrew, Palladino, Giuseppe   +4 more
core   +1 more source

Pliocene-Pleistocene marine cyclothems, Wanganui Basin, New Zealand: a lithostratigraphic framework [PDF]

, 1995
The Rangitikei River valley between Mangaweka and Vinegar Hill and the surrounding Ohingaiti region in eastern Wanganui Basin contains a late Pliocene to early Pleistocene (c. 2.6-1.7 Ma), c.
Abbott S. T., Aguirre E., Anderton P. W., Feldmeyer A. E., Fleming C. A., Milne J. D. G., Naish T. R., Pillans B., Seward D., Shackleton N. J., Stern T. A., Te Punga M. T., Vail P., Wilson G. S.   +13 more
core   +2 more sources

Connecting microstructural attributes and permeability from 3D tomographic images of in situ shear-enhanced compaction bands using multiscale computations [PDF]

, 2011
Tomographic images taken inside and outside a compaction band in a field specimen of Aztec sandstone are analyzed by using numerical methods such as graph theory, level sets, and hybrid lattice Boltzmann/finite element techniques.
Andrade, José E., Eichhubl, Peter, Rudnicki, John W., Sun, WaiChing   +3 more
core   +1 more source

Dynamic Characterization of Microscopic Pore Structure in Medium–High Permeability Sandstones During Waterflooding

Nanomaterials
Understanding the microscopic characteristics and evolutionary patterns of pore structures during high-PV waterflooding is critical for improving the accuracy and efficiency of oil field development.
Jiayi Wu, Wenbo Gong, Qingyu Wang, Yuhang He, Junhui Guo, Yi Bao, Shuai Shao, Rubin Li   +7 more
doaj   +1 more source

Effect of CO2 flooding in an oil reservoir with strong bottom-water drive in the Tahe Oilfield, Tarim Basin, Northwest China

Energy Geoscience
The dissolution and diffusion of CO2 in oil and water and its displacement mechanism were investigated by laboratory experiment and numerical simulation for Block 9 in the Tahe oilfield, a sandstone oil reservoir with strong bottom-water drive in Tarim ...
Li Zhang, Haiying Liao, Maolei Cui
doaj   +1 more source

Experimental Study on the Effect of High Temperature on the Physical and Mechanical Properties of Sandstone with Different Bedding Angles

Applied Sciences, 2023
As a typical sedimentary rock, the number of beddings in the horizontal direction of sandstone is far greater than that in the vertical direction, leading to its physical and mechanical properties showing obvious anisotropy with changes in bedding angle.
Yan Qin, Nengxiong Xu, Wei Chen, Linqing Wu   +3 more
doaj   +1 more source