We explored the potential incorporation of Sentinel-2A imagery for rock unit determination in Croatian karst region dominated by carbonate rocks. The various lithological units are sources both stone aggregates and dimension stone, their spatial distribution is high importance mineral resource management. presented approach included preprocessing processing existing analog data (geological maps...

First posted February 27, 2023 For additional information, contact: Cooperative Fish and Wildlife Research Units ProgramU.S. Geological Survey12201 Sunrise Valley Drive, Mail Stop 303Reston, VA 20192Contact Pubs Warehouse Established in 1935, the CRU program is a unique cooperative partnership among State agencies, host universities, Management Institute, U.S. Survey, Service. Designed to meet ...

Three-dimensional (3D) geological models are important representations of the results of regional geological surveys. However, the process of constructing 3D geological models from two-dimensional (2D) geological elements remains difficult and is not necessarily robust. This paper proposes a method of migrating from 2D elements to 3D models. First, the geological interfaces were constructed usi...

Marine geological maps of the Campania region have been constructed both to a 1:25.000 and 1:10.000 scale in frame research projects financed by Italian National Geological Survey, focusing, particular, on Gulf Naples (Southern Tyrrhenian Sea), complex volcanic area where sedimentary processes strongly interacted during Late Quaternary Cilento Promontory offshore. In this paper, examples sheets...

With the development of computer technology and geological modeling study of the gradual maturity, 3D for the engineering geological modeling and information visualization analysis system of opportunities and challenges brought about. Have carried on the detailed introduction to the three dimensional geological modeling tool and the method. Summarized the three dimensional geological modeling b...

generally, alluvial basins of arid and semiarid zones are the places with excessive groundwater withdrawal, and also they have a high potential for land subsidence. excessive groundwater withdrawals have caused severe land subsidence in tehran, iran. at present, the maximum land subsidence rate is 36 cm/year, covering an area of nearly 530 km2. in the 2000s, as a result of economic and populati...

The purpose of this study was to demonstrate the value of the proposed Hyperspectral Infrared Imager (HyspIRI) instrument for geological mapping applications. HyspIRI-like data were collected as part of the HyspIRI airborne campaign that covered large regions of California, USA, over multiple seasons. This work focused on a Southern California area, which encompasses Imperial Valley, the Salton...

This paper analyzes and summarizes the numerous types of variations of groundwater pressures (heads), mid-oceanic ridge borehole temperatures and microseismicity in response to tidal forcing in coastal aquifers and deep sea sediments. Tidally related data obtained from various sources were filtered and processed by means of classical harmonic analysis to extract the amplitudes of pressure and t...

Several key techniques in 3D geological modeling including planar mesh generation, spatial interpolation, and surface intersection are summarized in this paper. Note that these techniques are generic and widely used in various applications but play a key role in 3D geological modeling. There are two essential procedures in 3D geological modeling: the first is the simulation of geological interf...