Геология России: Recent submissions

Now showing items 921-940 of 43490

RADON DISTRIBUTION IN GROUNDWATER OF TAIWAN

Han Y.L.; Tom kuo M.C.; Fan K.C.; Chiang C.J.; Lee Y.P. (2006)

Radon levels were surveyed in 517 monitoring wells constructed in five major groundwater areas of Taiwan. The radon concentration in groundwater samples varied in a wide range from below the detection limit of 18 pCi/L up ...
THE GEOCHEMICAL VARIATIONS OF MID-CRETACEOUS LAVAS ACROSS WESTERN SHANDONG PROVINCE, CHINA AND THEIR TECTONIC IMPLICATIONS

Ying J.; Zhou X.; Zhang H. (2006)

Major and trace element as well as Sr–Nd isotopic compositions of mid-Cretaceous lavas across western Shandong Province, China have been studied. These lavas can be generally divided into southern Shandong group (including ...
MODELING STREAM-AQUIFER INTERACTIONS IN A SHALLOW AQUIFER, CHOELE CHOEL ISLAND, PATAGONIA, ARGENTINA

Rodríguez L.B.; Cello P.A.; Vionnet C.A. (2006)

A groundwater/surface-water interaction model was developed for the shallow alluvial aquifer of the Choele Choel Island in Patagonia, Argentina. In this semiarid climate, agriculture is sustained by an irrigation/drainage ...
GROUNDWATER FLOW MODELLING WITHIN A COASTAL ALLUVIAL PLAIN SETTING USING A HIGH-RESOLUTION HYDROFACIES APPROACH; BELLS CREEK PLAIN, AUSTRALIA

Ezzy T.R.; Cox M.E.; O’rourke A.J.; Huftile G.J. (2006)

Ground penetrating radar (GPR) has proved to be an extremely useful geophysical tool, in conjunction with direct geological data, to develop a realistic, macroscopic, subjective-based conceptual model of aquifer architecture ...
THE PALEOENVIRONMENT AND THE EVOLUTION OF BRINES IN THE JORDAN-DEAD SEA TRANSFORM AND IN ADJOINING AREAS

Rosenthal E.; Flexer A.; Möller P. (2006)

One of the most important processes leading to the deterioration of groundwater in Israel is the migration of brines penetrating into fresh groundwater bodies. Such manifestations occur at an ever increasing frequency and ...
EFFECT OF SAMPLING AND LINKAGE ON FAULT LENGTH AND LENGTH–DISPLACEMENT RELATIONSHIP

Xu S.; Nieto-Samaniego A.F.; Alaniz-Alvarez S.A.; Velasquillo-Martínez L.G. (2006)

The power-law exponent (n) in the equation: D=cL n , with D = maximum displacement and L = fault length, would be affected by deviations of fault trace length. (1) Assuming n=1, numerical simulations on the effect of ...
NUMERICAL EVALUATION OF PUMPING WELL TRANSMISSIVITY ESTIMATES IN LATERALLY HETEROGENEOUS FORMATIONS

Tumlinson L.G.; Osiensky Ja.L.; Fairley J.P. (2006)

Transmissivity estimates derived from non-steady-state, single well, constant discharge, aquifer tests in laterally heterogeneous environments generally are questioned relative to their representativeness of aquifer ...
FIRST RESULTS FROM THE NORTH ICELAND EXPERIMENT

Riedel C.; Tryggvason A.; Brandsdottír B.; Dahm T.; Stéfansson R.; Hensch M.; Böðvarsson R.; Vogfjord K.S.; Jakobsdottír S.; Eken T.; Herber R.; Holmjarn J.; Schnese M.; Thölen M.; Hofmann B.; Sigurdsson B.; Winter S. (2006)

Between June 2004 and September 2004 a temporary seismic network was installed on the northern insular shelf of Iceland and onshore in north Iceland. The seismic setup aimed at resolving the subsurface structure and, thus, ...
TOURNAISIAN AGE OF GRANITOIDS FROM THE ODRA FAULT ZONE (SOUTHWESTERN POLAND): EQUIVALENT OF THE MID-GERMAN CRYSTALLINE HIGH?

Dörr W.; Żelaźniewicz A.; Bylina P.; Schastok Ja.; Franke W.; Haack U.; Kulicki C. (2006)

The Odra Fault Zone of southwestern Poland is a NW-trending horst marked by gravimetric and magnetic anomalies and composed of high- to low-grade metamorphic and igneous rocks which are only known from boreholes. This zone ...
A NEW APPROACH FOR THE DEVELOPMENT AND MANAGEMENT OF BRACKISH KARST SPRINGS

Maramathas A. (2006)

A new approach to the method of artificial upraising of the water outlet point, for management and development of brackish karst springs, uses the MODKARST model. Brackish karst springs simulation can be used to estimate ...
SR AND ND ISOTOPE SYSTEMATICS OF FRANCISTOWN PLUTONIC ROCKS, BOTSWANA: IMPLICATIONS FOR NEOARCHAEAN CRUSTAL EVOLUTION OF THE ZIMBABWE CRATON

Zhai M.; Kampunzu A.B.; Modisi M.P.; Bagai Z. (2006)

The Francistown plutonic rocks at the south-western margin of the Zimbabwe craton consist of three igneous suites: Sanukitoid, Tonalite–Trondhjemite–Granite (TTG) suites and High-K granites. The TTG suite is subdivided ...
TECTONIC AND SEDIMENTARY EVOLUTION OF THE LOWER PLIOCENE PERIADRIATIC FOREDEEP IN CENTRAL ITALY

Carruba S.; Casnedi R.; Perotti C.R.; Tornaghi M.; Bolis G. (2006)

The Periadriatic foredeep (Italy) was generated by Neogene downbending of the Adria Plate under the Apennine Chain. The basin is filled with Plio-Pleistocene siliciclastic turbidites. Its substratum consists of the carbonate ...
CHARACTERIZATION OF WATER BURSTING AND DISCHARGE INTO UNDERGROUND MINES WITH MULTILAYERED GROUNDWATER FLOW SYSTEMS IN THE NORTH CHINA COAL BASIN

Wu Q.; Wang M. (2006)

A conceptual framework for characterization of water bursting and discharge into underground mines with multilayered groundwater flow systems is presented, based on the features of the site conditions and analyses of the ...
EVOLUTION OF THE BüKK MOUNTAINS (NE HUNGARY) DURING THE MIDDLE–LATE TRIASSIC ASYMMETRIC RIFTING OF THE VARDAR-MELIATA BRANCH OF THE NEOTETHYS OCEAN

Velledits F. (2006)

Based on sedimentological and biostratigraphic investigations of the Middle–Late Triassic successions of the Bükk Mountains, the evolution of an upper plate margin of a rifting area was reconstructed. The Middle Anisian ...
TEMPERATURE DEPENDENCE OF LARGE-SCALE WATER-RETENTION CURVES: A CASE STUDY

Liu H.; Bodvarsson G.S.; Dane J.H. (2006)

A local-scale model for temperature-dependence of water-retention curves may be applicable to large scales. Consideration of this temperature dependence is important for modeling unsaturated flow and transport in the ...
SIGNIFICANCE OF ENHANCED INFILTRATION DUE TO GROUNDWATER EXTRACTION ON THE DISAPPEARANCE OF A HEADWATER LAGOON SYSTEM: TOLUCA BASIN, MEXICO

Rudolph D.L.; Sultan R.; Garfias J.; Mclaren R.G. (2006)

Mexico City relies significantly on groundwater resources drawn from the Sistema Lerma well field located in the Toluca Basin, Mexico. Enhanced infiltration caused by groundwater extraction is suspected to be both a prime ...
OBJECT MODELS WITH VECTOR STEERING

Hauge R.; Syversveen A.R.; Macdonald A. (2006)

Object models are widely used to model the distribution of facies in a reservoir. Several computer programs exist for modelling fluvial channels or more general facies objects. This paper focuses on a marked point model ...
CARBON AND OXYGEN ISOTOPE CONSTRAINTS ON FLUID SOURCES AND FLUID–WALLROCK INTERACTION IN REGIONAL ALTERATION AND IRON-OXIDE–COPPER–GOLD MINERALISATION, EASTERN MT ISA BLOCK, AUSTRALIA

Marshall L.J.; Oliver N.H.S.; Davidson G.J. (2006)

The source of metasomatic fluids in iron-oxide–copper–gold districts is contentious with models for magmatic and other fluid sources having been proposed. For this study, δ 18O and δ 13C ratios were measured from carbonate ...
SPECTRAL CORRECTED SEMIVARIOGRAM MODELS

Pyrcz M.J.; Deutsch C.V. (2006)

Fitting semivariograms with analytical models can be tedious and restrictive. There are many smooth functions that could be used for the semivariogram; however, arbitrary interpolation of the semivariogram will almost ...
AGE CONSTRAINTS ON FELSIC INTRUSIONS, METAMORPHISM AND GOLD MINERALISATION IN THE PALAEOPROTEROZOIC RIO ITAPICURU GREENSTONE BELT, NE BAHIA STATE, BRAZIL

Mello E.F.; Xavier R.P.; Mcnaughton N.J.; Hagemann S.G.; Fletcher Ia.; Snee L. (2006)

U–Pb sensitive high resolution ion microprobe mass spectrometer (SHRIMP) ages of zircon, monazite and xenotime crystals from felsic intrusive rocks from the Rio Itapicuru greenstone belt show two development stages between ...

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