In this work, a methodological framework employing image processing techniques has been developed and applied on a LANDSATETM+ image of Alevrada, Greece. Pre-processing of the satellite image was followed by edge detection performed on band 5 of the ETM+ image in order to obtain proper input data to the lineament identification system. NDVI, PCA and ISODATA unsupervised classification were appl...

Sentinel-2A MSI is the Landsat-like spatial resolution (10–60 m) super-spectral instrument of the European Space Agency (ESA), aimed at additional data continuity for global land surface monitoring with Landsat and Satellite Pour l’Observation de la Terre (SPOT) missions. Several simulation studies have been conducted in the last several years to show the potential of Sentinel-2A MSI (MultiSpec...

Effectively addressing marijuana trade is aided by understanding marijuana geographic sources. We analyzed the (87)Sr/(86)Sr of marijuana samples grown in 79 counties across the United States to determine if a primary geologic signal is retained in marijuana, which could therefore be useful for geographic sourcing. The marijuana results were compared with modeled bedrock (87)Sr/(86)Sr values ba...

The widespread propagation of networked computers in Earth and space science and especially the representation of scientific data in formats that can be shared, analyzed and visualized has given rise to exciting new opportunities for exploration and discovery. data are the representation of some facts. We can see data of various subjects, types and dimensions, such as a geologic map of New York...

Regional geologic mapping in 1994 extended previous 150 000-scale mapping of the Tulsequah River mapsheet (104W12; Mihalynuk et a/.. 1994a, b) eastward into the Stuhini Creek map area (104Wl1, Figure 1). Approximately 20% of the Tulsequah River and 45% of the Stuhini Creek map sheets has been previously mapped as Upper Triassic Stuhini Group (Souther, 1971'). More recently, fossil and is...

Recently, the need of the geologic information has been rising in many fields such as environmental geology, disaster mitigation, and urban geological applications. For these fields, it is effective to provide geologic information as a three dimensional(3-D) model that can be generated and visualized in general purpose GIS software. The present work aims at introducing a basic theory, implement...

Tahltan Lake (104G113) map areas. This work adjoins and locally updates mapping in the Yehiniko Lake and Scud River areas (Brown and Gunning, IY8Y)a. b: Brown and Greig; IYYO. Browl: c t r r l . , 1990). The project objectives are to provide new 1:SO OOO-scale geologic maps accompanied by up-to-date geochemical and mineral occurrence data. and an assessment of thc mineral potential of the area....