Coastal & Marine Geology InfoBank

Home FACS Activities Atlas Geology School Related Sites More

USGS CMG InfoBank: Rising Temperature

Skip navigational links
Loading
Dictionaries: Our Mapping Systems   The USGS and Science Education   USGS Fact Sheets   Topics   Keywords   Data Dictionary   Metadata Dictionary   Computer Terminology   Digital Formats  
InfoBank Terms: Activity ID   activity overview   crew   digital data   formal metadata   lines   metadata   NGDC   port stops   project/theme   region   ship   stations   time   virtual globe   year  
Data Types: bathymetry   biological   geochemical   gravity   ground penetrating radar   imaging   LIDAR   logs   magnetics   metering equipment   navigation   samples   seismic   total station   definitions disclaimer  
Data Formats: ARC coverage   E00   FGDC metadata   gridded/image   imaging   material   scattered/swath   Shapefile   vector/polygon  
Comment: 09:55 - 10:40 (00:45)
Source: Annenberg/CPB Resources - Earth Revealed - 18. Metamorphic Rocks
Keywords: "directed stress", temperature, mineral, "metamorphic rock", recrystallization, texture, "igneous rock", "sedimentary rock", limestone, calcite, heat, metamorphism, crystal

Our transcription: In addition to directed stress, rising temperature will cause minerals in a metamorphic rock to react, forming new crystal lattices and mineral types.
This process, called "recrystallization", generally causes minerals to grow larger developing an interlocking texture resembling that of igneous rocks.
For example, when the sedimentary rock, limestone, is metamorphosed by heat into marble, the fine grains of calcite in the original limestone recrystallize into large calcite crystals which interlock to give the emerging marble a course texture.

Geology School Keywords
Skip footer navigational links

Coastal and Marine Science Centers:  Pacific   St. Petersburg   Woods Hole  
InfoBank   Coastal and Marine Geology Program   Geologic Information   Ask-A-Geologist   USGS Disclaimer  


Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://walrus.wr.usgs.gov/infobank/programs/html/school/moviepage/17.01.12.html
Page Contact Information: InfoBank staff
Page Last Modified: Thu Oct 31 04:27:15 PDT 2013  (chd)