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Title: Journal of the Geological Society



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Title: Journal of the Geological Society


Full Journal Title: Journal of the Geological Society

ISO Abbreviated Title: J. Geol. Soc.

JCR Abbreviated Title: J Geol Soc London

ISSN: 0016-7649

Issues/Year: 6

Journal Country/Territory: England

Language: English

Publisher: Geological Soc Publ House

Publisher Address: Unit 7, Brassmill Enterprise Centre, Brassmill Lane, Bath, Avon, England BA

Subject Categories:

Geosciences, Interdisciplinary: Impact Factor

? Altunel, E. (1999), Geological and geomorphological observations in relation to the 20 September 1899 Menderes earthquake, western Turkey. Journal of the Geological Society, 156 (2), 241-246.

Abstract: The 20 September 1899 Menderes earthquake was the most damaging event that has occurred in the Buyuk Menderes graben in the last 100 years. The earthquake involved normal faulting along the northern margin of the Buyuk Menderes graben from west of Aydin to Nazilli. A derailed investigation along the northern margin of the graben showed the presence of faults cutting actively depositing graben Boor deposits in the foot of Neogene hills. Along an E-W trend east of Aydin, a normal fault was located having an observable length of at least 3 km and a maximum vertical displacement of about 3.5 m. A stream entering to the graben changed its cause due to this fault. Field evidence suggests that, in addition to south-side down-throw by as much as 2 m during the 1899 event, there was also at least 1.5 m opening along the surface break. Field evidence also showed that the 1899 surface break follows a pre-existing break which might have ruptured during the 26 (or 25) BC and 22 February 1653 events; again south-side down-thrown by at least 1 m and 1.5 m, respectively.

Title: Journal of Geophysical Research


Full Journal Title: Journal of Geophysical Research

ISO Abbreviated Title:

JCR Abbreviated Title:

ISSN: 0148-0227

Issues/Year:

Journal Country/Territory:

Language:

Publisher:

Publisher Address:

Subject Categories:

Geosciences, Interdisciplinary: Impact Factor

Notes: highly cited

? Tóth, J. (1962), A theory of groundwater motion in small drainage basins in central Alberta, Canada. Journal of Geophysical Research, 67 (11), 4375-??.

Keywords: Groundwater


Title: Journal of Geophysical Research-Atmospheres


(JGR Atmospheres)

Full Journal Title: Journal of Geophysical Research-Atmospheres

ISO Abbreviated Title:

JCR Abbreviated Title: J Geophys Res

ISSN: 0148-0227

Issues/Year: 12

Journal Country/Territory: United States

Language: English

Publisher: Amer Geophysical Union

Publisher Address: 2000 Florida Ave NW, Washington, DC 20009

Subject Categories:

Geosciences, Interdisciplinary: Impact Factor

Notes: highly cited

? Birch, F. (1978), Finite strain isotherm and velocities for single-crystal and polycrystalline NaCl at high-pressures and 300°K. Journal of Geophysical Research-Atmospheres, 83 (NB3), 1257-1268.

Abstract: Ultrasonic, pressure-volume, and shock wave measurements of NaCl are reviewed, with the purpose of representing as much as possible within a single theoretical framework, A large portion of the data is consistent, to within reasonable uncertainties, with the Eulerian formulation of finite strain, in the BE 2 form. This contains three parameters, of which two, K0 and k0’, are obtainable from single-crystal ultrasonic measurements, while the third, K0”, may be found with the aid of shock wave data. The combination of the values of Spetzler et al. (1972a) with the isotherm of Fritz et al. (1971) gives an equation of state consistent with the pressure-volume measurements to 300 kbar, to within a kilobar or two. There remain small but possibly significant discrepancies with the high-precision measurements of linear change at low pressures. Various two-parameter isotherms are also examined and found to fail either at low or at high compressions: While other three-parameter forms may be fitted to the data, they do not afford a satisfactory general treatment of wave propagation. Finite strain theory is applied to project the effective elastic coefficients of single-crystal NaCl to 270 kbar. The anisotropy index, 2B 44(B 11 – B 12), falls from 0.7 at P = 0 to 0.12 at 270 kbar, and the usual methods of averaging to find the properties of a quasi-isotropic aggregate diverge increasingly as pressure increases. The methods of Kröner and of Peresada give fair agreement with recent measurements of velocities in NaCl aggregates to 270 kbar.

Blake, D.R., Chen, T.Y., Smith, Jr., T.W., Wang, C.J.L., Wingenter, O.W., Blake, N.J., Rowland, F.S. and Mayer, E.W. (1996), Three-Dimensional distribution of nonmenthane hydrocarbons and halocarbons over the northwestern Pacific during the 1991 Pacific Exploratory Mission (PEM-West A). Journal of Geophysical Research-Atmospheres, 101 (D1), 1763-1778.

Abstract: A total of 1667 whole air samples were collected onboard the NASA DC-8 aircraft during the Ci-week Pacific Exploratory Mission over the western Pacific (PEM-West A) in September and October 1991. The samples were assayed for 15 C-2-C-7 hydrocarbons and six halocarbons. Latitudinal (0.5 degrees S to 59.5 degrees N) and longitudinal (114 degrees E to 122 degrees W) profiles were obtained from samples collected between ground level and 12.7 km. Thirteen of the 18 missions exhibited at least one vertical profile where the hydrocarbon mixing ratios increased with altitude. Longitude-latitude color patch plots at three altitude levels and three-dimensional color latitude altitude and longitude-altitude contour plots exhibit a significant number of middle-upper tropospheric pollution events. These and several lower tropospheric pollution plumes were characterized by comparison with urban data from Tokyo and Hong Kong, as well as with natural gas and the products from incomplete combustion. Elevated levels of nonmethane hydrocarbons (NMHC) and other trace gases in the upper-middle free troposphere were attributed to deep convection over the Asian continent and to typhoon-driven convection near the western Pacific coast of Asia. In addition, NMHCs and CH3CCl3 were found to be useful tracers with which to distinguish hydrocarbon and halocarbon augmented plumes emitted from coastal Asian cities into the northwestern Pacific.

Arimoto, R., Duce, R.A., Savoie, D.L., Prospero, J.M., Talbot, R., Cullen, J.D., Tomza, U., Lewis, N.F. and Jay, B.J. (1996), Relationships among aerosol constituents from Asia and the North Pacific during PEM-West A. Journal of Geophysical Research-Atmospheres, 101, 2011-2023.



Abstract: Aerosol particle samples collected from Asia and the North Pacific were analyzed to investigate the relationships among atmospheric sea salt, mineral aerosol, biogenic emissions (methanesulfonate (MSA)) and several anthropogenic substances (sulfate, nitrate and various trace elements), These studies specifically focused on the sources for aerosol SO4 = and on the long-range transport of continental materials to the North Pacific. Ground-based aerosol sampling was conducted at four coastal-continental sites: Hong Kong, Taiwan, Okinawa and Cheju; and at three remote Pacific islands, Shemya, Midway and Oahu. Non-sea-salt (nss) SO4 = and MSA were uncorrelated at the East Asian sites presumably because pollution sources overwhelm the biogenic emissions of nss SO4 = . At the coastal-continental sites, marine biogenic emissions accounted for only 10 to <5% of the total nss SO4 = . In contrast, over the ocean the concentrations of nss SO4 = and MSA were correlated (Midway r = 0.70; Oahu r = 0.54) and higher percentages of biogenic nss SO4 = occurred, 55 and 70% at Oahu and Midway, respectively. The concentrations of nss SO4 = and NO3-were correlated at Cheju, Hong Kong, Taiwan, Okinawa, Midway and Oahu, indicating some similarities in their sources and the processes governing their transport; however, differences in the nss SO4 = /NO3-ratios among sites suggest regional differences in the pollution component of the aerosol. At Shemya the concentrations of MSA during the summer (100 ng m-3 or more) are about 2 orders of magnitude higher than those in winter. The dimethylsulfide-derived fraction of the nss SO4 = is highest in the summer when the monthly median nss SO4 = /MSA ratios range from 2.7 to 4.5, i.e., comparable to the ratios observed over Antarctica and other high-latitude locations. However, the monthly median nss SO4 = /MSA ratios increase, reaching 50 to 200 in the winter as productivity nearly ceases and the biogenic fraction of nss SO4 = at Shemya decreases dramatically; this suggests a strong seasonal pollution component to the sulfate aerosol. The meteorological conditions favoring the long-range transport of Asian dust to the North Pacific also lead to transport of anthropogenic materials. At Oahu the correlation between NO3-and Al (dust) was highly significant (r = 0.75; p < 0.001), while the correlations between nitrate and Al at the continental sites were low, These differences indicate that the composition of the air sampled at the coastal-continental stations may be quite different from the air transported to the remote ocean. This phenomenon also appeared to affect the relationship between nss SO4 = and antimony. The correlations between nss SO4 = and Sb were weak at the Asian sites but strong at the open ocean sites where the nss SO4 = /Sb ratios were higher than those over the continent.

? Chughtai, A.R., Brooks, M.E. and Smith, D.M. (1996), Hydration of black carbon. Journal of Geophysical Research-Atmospheres, 101 (D14), 19505-19514.

Abstract: Hydration studies of n-hexane soot particles in the relative H2O pressure range 0.33-0.52 have revealed the nature of the processes between water molecules in the vapor phase and primary reaction sites at the particle surface. Initially, about 40% of the carbon-oxygen functionalities (most likely the carboxylics) on freshly prepared soot reacts irreversibly with water vapor, while at P/P0 greater than or equal to 0.48, the adsorption follows the Dubinin-Radushkevich equation. Determination of these parameters enables calculation of surface coverage at limiting adsorption and at the chemisorption limit for all materials studied. Limiting surface coverage of fresh soot is consistent with a 50% oxygen coverage determined earlier; it increases to about 100% for nitrated soot, which is the most extensively hydrated. Hydration has been shown to increase with soot aging, a phenomenon which has revealed an important role of physisorbed O2 in hydration. Trace-metal incorporation at the 30-110 ppm level significantly increases particle hydration and demonstrates a role of metal centers in the process.

Keywords: Oxidized Soots, Sulfur-Dioxide, Hexane Soot, Adsorption, Oxidation, Kinetics




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