Turan, A. ; Saner, S. ; Artun, Emre (2016)
Intersecting Fracture Geometries
in Control of Geothermal Spring Occurrences
in Circumferences of the Madra Mountain, Aegean Region of Turkey.
Geothermal Resources Council Annual Meeting-2016. Sacramento, California, USA
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
Abundant geothermal springs occur in the Aegean Region of Turkey. These are all associated with two important phenomena: 1. Rough topography causing hydrostatic pressure; and 2. Intersecting fracture planes which provide pathways for water to seep down and flow back to the surface upon getting heated. Deep seated steeply dipping fractures which provide inflow in metamorphic or plutonic basement rocks are intersected by young normal faults that are pathways for outflow. Young faults are mainly those bounding horst and graben structures in the region and host hot springs along them. Strike and dip angles of intake and outlet fracture systems control the depth of intersection line where vadose water flow is diverted upward. Temperature is related to intersection depth. Strike direction relationships between the fractures determine if cold water will mix with hot water or not. Once conditions permit hot water to flow to the surface, a convection circulation system forms and alters the regional geothermal gradient by heating along the flow pathway. Geothermal spring temperature is related with regional geothermal gradient but while flowing up cooling does not follow the geothermal gradient because of heating by circulation system developed over the years.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 2016 |
| Autor(en): | Turan, A. ; Saner, S. ; Artun, Emre |
| Art des Eintrags: | Bibliographie |
| Titel: | Intersecting Fracture Geometries in Control of Geothermal Spring Occurrences in Circumferences of the Madra Mountain, Aegean Region of Turkey |
| Sprache: | Englisch |
| Publikationsjahr: | 2016 |
| Band einer Reihe: | 40 |
| Veranstaltungstitel: | Geothermal Resources Council Annual Meeting-2016 |
| Veranstaltungsort: | Sacramento, California, USA |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | Abundant geothermal springs occur in the Aegean Region of Turkey. These are all associated with two important phenomena: 1. Rough topography causing hydrostatic pressure; and 2. Intersecting fracture planes which provide pathways for water to seep down and flow back to the surface upon getting heated. Deep seated steeply dipping fractures which provide inflow in metamorphic or plutonic basement rocks are intersected by young normal faults that are pathways for outflow. Young faults are mainly those bounding horst and graben structures in the region and host hot springs along them. Strike and dip angles of intake and outlet fracture systems control the depth of intersection line where vadose water flow is diverted upward. Temperature is related to intersection depth. Strike direction relationships between the fractures determine if cold water will mix with hot water or not. Once conditions permit hot water to flow to the surface, a convection circulation system forms and alters the regional geothermal gradient by heating along the flow pathway. Geothermal spring temperature is related with regional geothermal gradient but while flowing up cooling does not follow the geothermal gradient because of heating by circulation system developed over the years. |
| Freie Schlagworte: | geothermal, geology, geomorhology, fracture geometries, geothermal gradient, Madra Mountain, Turkey |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Geowissenschaften > Fachgebiet Angewandte Geothermie |
| Hinterlegungsdatum: | 05 Feb 2019 06:25 |
| Letzte Änderung: | 12 Feb 2019 06:25 |
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