environmental geology; definition and methods 6. engineering and environmental geology
DESCRIPTION
6.2. Subjects of environmental geology Environmental geology is applied geology. Specifically, it is the use of geologic information to help us solve conflicts in land use, to minimize environmental degradation, and to maximize the beneficial results of using our natural and modified environments. The application of geology to these problems includes the study of the following: 1. Earth materials, such as minerals, rocks, and soils, to determine how they form, their potential use as resources or waste disposal sites, and their effects on human health; 2. Natural hazards, such as floods, landslides, earthquakes, and volcanic activity, in order to minimize loss of life and property; 3. Land for site selection, land-use planning, and environmental impact analysis; 4. Hydrologic processes of groundwater and surface water to evaluate water resources and water pollution problems; 5. Geologic processes, such as deposition of sediment on the ocean floor, the formation of mountains, and the movement of water on and below the surface of Earth, to evaluate local, regional, and global change.TRANSCRIPT
Environmental geology; definition and methods
6.Engineering and Environmental Geology
6.1. Fundamentals of environmental geology
The System of the Earth (FÖLDESSY 2011)
6.2. Subjects of environmental geology
Environmental geology is applied geology. Specifically, it is the use of geologic information to help us solve conflicts in land use, to minimize environmental degradation, and to maximize the beneficial results of using our natural and modified environments. The application of geology to these problems includes the study of the following:1. Earth materials, such as minerals, rocks, and soils, to determine how they form, their potentialuse as resources or waste disposal sites, and their effects on human health;2. Natural hazards, such as floods, landslides, earthquakes, and volcanic activity, in order to minimize loss of life and property; 3. Land for site selection, land-use planning, and environmental impact analysis;4. Hydrologic processes of groundwater and surface water to evaluate water resources and water pollution problems;5. Geologic processes, such as deposition of sediment on the ocean floor, the formation of mountains, and the movement of water on and below the surface of Earth, to evaluate local, regional, and global change.
Methods:
Field methods- trenching- drilling- geophysical methods- hydrogeological methodsLaboratory methodsMapping
„Köszörűkő” quarry, Lábatlan
Map of sensitivity of groundwaters (www.kvvm.hu)Trench excavating
Types of environmental hazards:
Geological hazards
- volcanism- earthquakes- landslides
Antropogen environmental hazards
Map of the Ring of Fire
Geological hazardsVolcanoes
Volcanoes
Effusive volcanism, Mauna Kea Explosive volcanism
Lahar; Új-Zéland After the eruption of Merapi, 2010
Earthquakes
Position of hypocentre and epicentre of the earthquakes (FÖLDESSY 2011)
Longitudinal and transversal waves (FÖLDESSY 2011)
Types of surface waves (FÖLDESSY 2011)
Seismograph; Miskolc, 2010
Geologic hazards
Earthquakes
Earthquake at Chile, 2010 (meszarosmarton.wordpress.com)
Tsunami at Indonesia, 2004
Position of hypocentre and epicentre of the earthquakes (FÖLDESSY 2011)
Landslidesslipping
creepingSlipping near to the tunnel
Creeping at Sumatra
Geologic hazards
solifluction
soil creepSolifluction at Trondheim, Norway
Soil creeping at Telkibánya
Antropogen environmental hazards
Red mud accident at Kolontár Soil degradation at deforested area; Henan, China
Soil degradation and secondary salinity Water pollution at the Raba river
Thank you for your attention!