scholarly journals Preliminary unevaluated geologic map of the Marias River valley area, Toole and Liberty counties, Montana

1978 ◽  
Author(s):  
K.H. Holmes ◽  
T.E. Bretz
Keyword(s):  
River Valley ◽  
Geologic Map ◽  
Valley Area

Preliminary geologic map of the middle part of the Eagle River valley, Municipality of Anchorage, Alaska

1980 ◽  
Author(s):  
Henry R. Schmoll ◽  
Ernest Dobrovolny ◽  
Cynthia A. Gardner
Keyword(s):  
Middle Part ◽  
River Valley ◽  
Geologic Map

Simulation of Effluent Dispersion in the Rhone River Valley Area the Code Hermes

1989 ◽  
pp. 589-589
Author(s):  
P. Geai ◽  
S. Perdriel ◽  
J. Y. Caneill
Keyword(s):  
River Valley ◽  
Rhône River ◽  
Rhone River ◽  
Valley Area

scholarly journals An experimental aeromagnetic survey in the Volturno valley area (South-Eastern Latium)

1998 ◽  
Vol 41 (3) ◽  
Author(s):  
M. Chiappini ◽  
F. Ferraccioli ◽  
V. Bosi ◽  
E. Bozzo ◽  
G. Caneva ◽  
...  
Keyword(s):  
Structural Features ◽  
Tectonic Activity ◽  
Aeromagnetic Survey ◽  
Magnetic Image ◽  
Geologic Map ◽  
Anomaly Map ◽  
Area North ◽  
Valley Area ◽  
Shaded Relief ◽  
Extensional Setting

A helicopter-borne experimental aeromagnetic survey, covering an area of 200 km2, was performed in the Volturno valley area north of the Roccamonfina volcano and south of Venafro in November 1994. Although severe logistical, instrumental and meteorological conditions significantly reduced the planned coverage, the processed magnetic image still shows a remarkable improvement in the description of the geological and structural features of the area in comparison with previous regional aeromagnetic data. A multi-directional shaded relief anomaly map displays two moderately positive NW magnetic bands associated with lavas, pyroclastics and dykes of the Roccamonfina volcanic district together with N-S, NNE-SSW and NE-SW lineations. A comparative magnetic-geologic map allows correlation with known Pleistocene faults and reveals the existence, especially in the area between Sesto Campano and Presenzano, of a larger presence of high susceptibility dykes than seen in the outcrop, which is dominated by non-magnetic carbonatic rocks. We interpret the curvilinear and intricate pattern of magnetic lineaments as suggestive of an extensional setting along the main NW structures with previous strike slip components and of tectonic activity along a N-S fabric; the latter has no superficial evidence and has also been used for magma upwelling. Overall, this local scale investigation shows both the utility and the need for further efforts in high resolution aeromagnetics in Italy both for geological and environmental purposes similar to those successfully carried out in many other countries throughout the world.

Sur les divisions du Dogger dans la vallee de la Creuse (Indre); correlation avec le sud-est du Bassin parisien

1961 ◽  
Vol S7-III (6) ◽  
pp. 588-598 ◽  
Author(s):  
J. C. Fischer
Keyword(s):  
Middle Jurassic ◽  
River Valley ◽  
Paris Basin ◽  
Southwestern Part ◽  
Southeastern Part ◽  
The North ◽  
Starting Point ◽  
Working Out ◽  
Valley Area

Abstract Stratigraphy of the Dogger (middle Jurassic) in the southwestern part of the Paris basin, at the north border of the Central Massif is very poorly known because facies are monotonous and outcrops and fossils are scarce. A starting point for working out the stratigraphy is provided by the Creuse river valley, from Argenton-sur-Creuse northwestward to St. Gaultier. Stratigraphic correlations with the southeastern part of the Paris basin were made from 21 good outcrops in the Creuse valley area despite the lack of characteristic ammonites. Dogger formations total more than 100 m thickness, chiefly marine neritic limestones, with intercalated marl in the upper portion. Several meters of lagoonal marl and lignite above the base of the Dogger are transitional from lower to middle Bathonian (upper Dogger). Brachiopods and corals, including reef types, are the chief means of correlation.

The 847 CE earthquake in central-southern Italy: New hints from archaeosismological and geophysical investigations in the Volturno River Valley area

2020 ◽  
Vol 774 ◽  
pp. 228301
Author(s):  
C. Bottari ◽  
L. Ferranti ◽  
R. Di Maio ◽  
A. Frisetti ◽  
C. De Paola ◽  
...  
Keyword(s):  
Southern Italy ◽  
River Valley ◽  
Geophysical Investigations ◽  
Volturno River ◽  
Valley Area

Effects of precipitation increase on soil respiration of a Pinus yunnanensis plantation in a dry river valley area

2017 ◽  
Vol 37 (5) ◽  
Author(s):  
刘尉 LIU Wei ◽  
王丽华 WANG Lihua ◽  
符饶 FU Rao ◽  
周世兴 ZHOU Shixing ◽  
刘林 LIU Lin ◽  
...  
Keyword(s):  
Soil Respiration ◽  
River Valley ◽  
Pinus Yunnanensis ◽  
Precipitation Increase ◽  
Valley Area

scholarly journals Geologic Map of the House Rock Valley Area, Coconino County, Northern Arizona

2010 ◽  
Author(s):  
George H. Billingsley ◽  
Susan S. Priest
Keyword(s):  
Northern Arizona ◽  
Geologic Map ◽  
Valley Area
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