Moeck-Beardsmore Play Types

GEOTHERMAL ENERGY

Moeck-Beardsmore Play Types:

Moeck and Beardsmore define a Geothermal Play as a model of a geothermal system consisting of the combination of structural position and geologic setting that create a recoverable geothermal resource. Geologic factors considered include the Reservoir Rock Unit representing the primary reservoir for thermal fluids and/or geothermal heat; the Heat Charge System, consisting of the Heat Source and Heat Transport mechanism sustaining the system; a possible Regional Topseal or Caprock acting as a trap for heat and/or thermal fluids in the system that allow commercial exploitation (not present in all play types); the Timing of the above three factors that generates a recoverable geothermal resource; and the Play Fairway, which considers the expected geographic extent of the play.

Other definitions:Wikipedia Reegle

Type			Geologic Setting	Heat Source	Dominant Heat Transport Mechanism	Storage Properties of Reservoir	Regional Topseal or Caprock	Examples
Convection Dominated	CV-1: Magmatic	CV-1a: Extrusive	Magmatic Arcs, Mid Oceanic Ridges, Hot Spots	Active Volcanism, Shallow Magma Chamber	Magmatic-hydrothermal Circulation	---	Extensive Low Permeability Clay-rich Layers	Java
		CV-1b: Intrusive	Magmatic Arcs, Mid Oceanic Ridges, Hot Spots	Active Volcanism, Shallow Magma Chamber	Magmatic-hydrothermal Circulation, Fault Controlled	---	---	Taupo Volcanic Zone
	CV-2: Plutonic	CV-2a: Recent or Active Volcanism	Convergent Margins with Recent Plutonism (< 3 Ma), Young Orogens, Post-orogenic Phase	Young Intrusion+Extension, Felsic Pluton	Magmatic-hydrothermal Circulation, Fault Controlled	---	---	Larderello
		CV-2b: Inactive Volcanism	Convergent Margins with Recent Plutonism (< 3 Ma), Young Orogens, Post-orogenic Phase	Young Intrusion+Extension, Felsic Pluton, Heat Producing Element in Rock	Hydrothermal Circulation, Fault Controlled	---	Low Permeability Caprock	The Geysers
	CV-3: Extensional Domain		Metamorphic Core Complexes, Back-arc Extension, Pull-apart Basins, Intracontinental Rifts	Thinned Crust+Elevated Heatflow, Recent Extensional Domains	Fault Controlled, Hydrothermal Circulation	---	---	Basin and Range, Soultz-sous-Forêts
Conduction Dominated	CD-1: Intracratonic Basin		Intracratonic/Rift Basins, Passive Margin Basins	Lithospheric Thinning and Subsidence	Litho/Biofacies Controlled	High Porosity/Low Permeability Sedimentary Aquifers	---	North German Basin
	CD-2: Orogenic Belt		Foreland Basins within Fold-and-thrust Belts	Crustal Loading and Subsidence Adjacent to Thickened Crust	Fault/Fracture Controlled, Litho/Biofacies Controlled	High Porosity/High Permeability or High Porosity/Low Permeability Sedimentary Aquifers	---	Southern Canadian Cordillera, Molasse Basin
	CD-3: Crystalline Rock - Basement		Intrusion in Flat Terrain	Heat Producing Element in Rock, Hot Intrusive Rock	Hot Dry Rock, Fault/Fracture Controlled	Low Porosity/Low Permeability Intrusive Rock (Granite)	Insulating Caprock	Fenton Hill

These values are part of Category:Moeck-Beardsmore Play Types, and are used for Property:MoeckBeardsmoreType.