jueves, 5 de marzo de 2009

Animated fairies at dragondropland.comGif Letras, Numeros y Simbolos en RombosAnimated fairies at dragondropland.com

Facies: The set of all characteristics of a sedimentary rock that indicates its particular environment of deposition and which distinguish it from other facies in the same rock.

http://www.museumwales.ac.uk/media/2/2/4/2/thumb_500/facies.jpg

Fault: A planar or gently curved fracture in the Earth's crust across which there has been relative displacement.

http://www.geo.wvu.edu/%7Ejtoro/Petroleum/petroleum_figs/review2/traps/faults.jpg

Fault-block mountain: A mountain or range formed as a horst when it was elevated between parallel normal faults.

http://upload.wikimedia.org/wikipedia/commons/6/6a/Teton_fault_block.jpg

Fault plane: The plane that best approximates the fracture surface of a fault.

http://www.bhrc.ac.ir/ISMN/SHABAKEH/faq/files/Fault%20plane_files/image001.jpg

Faunal succession: The evolutionary sequence of life forms, especially as recorded by the fossil remains in a stratigraphic sequence.


http://www.soton.ac.uk/%7Eimw/jpg-Lulworth/5LC-lullog-succession.jpg

Felsic: An adjective used to describe a light-colored igneous rock poor in iron and magnesium content, abundant in feldspars and quartz.

http://www.mongolia.cratertocirque.com/images/pages/medium/mg-347-felsic-mafic-blobs.jpg

Fiord: A former glacial valley with steep walls and a U-shaped profile now occupied by the sea.

http://www.pitt.edu/%7Ecejones/GeoImages/3IntrusiveBodies/1Plutonsz/FelsicEnclaves.JPG

Fissure: An extensive crack, break, or fracture in the rocks.

http://www.phoenixrealestateguy.com/BlogImages/blogimagesearth-20fissure.png

Fissure vein: A cleft or crack in the rock material of the earth's crust, filled with mineral matter different from the walls and precipitated therin from aqueous solution.

http://www.geologywales.co.uk/dgb/banded.jpg

Flood basalt: A plateau basalt extending many kilometers in flat, layered flows originating in fissure eruptions.

http://upload.wikimedia.org/wikipedia/commons/thumb/0/07/3-Devils-grade-Moses-Coulee-Cattle-Feed-Lot-PB110016.JPG/721px-3-Devils-grade-Moses-Coulee-Cattle-Feed-Lot-PB110016.JPG

Flood plain: A level plain of stratified alluvium on either side of a stream; submerged during floods and built up silt and sand carried out of the main channel.

http://www.bbc.co.uk/schools/riversandcoasts/images/alt_stills/flood-plain1.gif

Flood tide: The part of the tide cycle during which the water is rising or leveling off at high water

http://www.mabernierfinearts.com/images/gallery/FebruaryFloodTide.JPG

Flow cleavage: In a metamorphic rock, the parallel arrangement of all planar or linear crystals as a result of rock flowage during metamorphism.

http://ic.ucsc.edu/%7Ecasey/eart150/Lectures/1classIntro/APClvgNovaScta.jpg


Fluid inclusion: A small body of fluid that is entrapped in a crystal and has the same composition as the fluid from which the crystal formed.

http://www.nuigalway.ie/nanoscale/images/Inclus01.jpg

Flume: A laboratory model of stream flow and sedimentation consisting of a rectangular channel filled with sediment and running water.

http://www.egr.msu.edu/%7Ephani/microadv_flume.jpg

Focus (earthquake): The point at which the rupture occurs; synonymous with hypocenter.

http://alancolville.com/quakes/focus_epicenter.jpg

Fold: A planar feature, such as a bedding plane, that has been strongly warped, presumably by deformation.

Foliation: Any planar set of minerals or banding of mineral concentrations including cleavage, found in a metamorphic rock.

http://www.indiana.edu/%7Egeol105/images/gaia_chapter_5/foliation.jpg

Foraminifera: A class of oceanic protozoa most of which have shells composed of calcite.

http://strata.geol.sc.edu/thinsections/images/fig3.jpg

Foraminiferal ooze: A calcareous sediment composed of the shells of dead Foraminifera.

http://chestofbooks.com/animals/Manual-Of-Zoology/images/Fig-15-Organisms-in-the-Atlantic-ooze-chiefly-Foraminif.jpg

FORCE:An influence that if applied to a free body results chiefly in an acceleration of the body and sometimes in elastic deformation and other effects.


http://www.starbaseca.org/images/mud2.jpg

Forset bed: One of the inclined beds found in crossbedding; also an inclined bed deposited on the outer front of a delta.

http://www-personal.umich.edu/%7Ehoaglund/TwoCreek/northend.jpg

Formation: The basic unit for the naming of rocks in stratigraphy: a set of rocks that are or once were horizontally continuous, that share some distinctive feature of lithology, and are large enough to be mapped.

http://media-cdn.tripadvisor.com/media/photo-s/01/03/1f/72/red-rock-formation.jpg

Fossil: An impression, cast, outline, or track of any animal or plant that is preserved in rock after the original organic material is transformed or removed.


Fossil fuel: A general term for combustible geologic deposits of carbon in reduced (organic) form and of biological origin, including coal, oil, natural gas, oil shales, and tar sands.

Friction breccia: A breccia formed in a fault zone or volcanic pipe by the relative motion of two rock bodies.

http://depthome.brooklyn.cuny.edu/geology/core332/images/breccia.jpg

Fringing reef: A coral reef that is directly attached to a landmass not made of coral.

http://www.albion.edu/geology/Geo210_Hawaii/Coastal/images/fringing_reefs.jpg

Fumarole: A small vent in the ground from which volcanic gases and heated groundwater emerge, but not lava.

http://www.skimountaineer.com/Trips/LassenSki99/LassenFumarole.jpg


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