View Metadata
Impact Craters, 1996
- Identification Information
- Data Quality Information
- Spatial Data Organization Information
- Spatial Reference Information
- Entity and Attribute Information
- Distribution Information
- Metadata Reference Information
- Identification Information
- Citation
- Originator
- Environmental Systems Research Institute (Redlands, Calif.)
- Publication Date
- 1996
- Title
- Impact Craters, 1996
- Geospatial Data Presentation Form
- vector digital data
- Series Information
- Series Name
- ArcAtlas
- Publication Information
- Publication Place
- Redlands, Calif.
- Publisher
- ESRI
- Online Linkage
- https://www1.columbia.edu/sec/acis/eds/dgate/studies/C1301/data/esri_1996_world_craters.zip
- Abstract
- Impact Craters is a point theme reresenting impact crates worldwide. Attribute information includes the name data and diameter of the vraters.
- Purpose
- For educational, non-commercial purposes. This dataset is appropriate for use in a GIS.
- Supplemental Information
- Impact craters are traces of asteroids and comet fragments that affect the earth. At a place of impact, high temperature and pressure which cause irreversable changes in the surrounding rocks are generated. Impact crater formation is an important geological process. It has affected the lithosphere and other spheres of the earth during the entire course of earth's geological and biological history. More than 100 impact craters are known. They range from several thousands to billions of years old. Most of them are less than 200 million years old. Older craters are rare, mainly because they have been destroyed by erosion, deposition, and other geological processes. The most ancient impact crater that has been identified, Vredefort in South Africa, is about 1.97 billion years old. Shapes of impact craters can be simple or complicated. A simple crater is shaped like a bowl with uplifted edges. A complicated crater has an uplifted central structure surrounded by a ring depression and fractured swell. The diameter of simple craters can reach two kilometers in sedimentary rocks at the place of impact and four kilometers in crystalline rocks. Complicated craters have greater diameters (more than four kilometers). It is thought that every million years, one to three craters of 20 kilometers in diameter are created on the earth.
- Temporal Extent
- Currentness Reference
- publication date
- Time Instant
- 1996
- Bounding Box
- West
- -180
- East
- 180
- North
- 85
- South
- -85
- Theme Keyword
- geoscientificinformation
- Theme Keyword Thesaurus
- ISO 19115 Topic Categories
- Theme Keyword
- Impact Craters
- Theme Keyword Thesaurus
- None
- Place Keyword
- Earth
- Place Keyword Thesaurus
- Library of Congress Subject Headings
- Temporal Keyword
- 1996
- Temporal Keyword Thesaurus
- None
- Access Restrictions
- For current Columbia affiliates only.
- Use Restrictions
- For educational, non-commercial use only.
- Status
- Complete
- Maintenance and Update Frequency
- None planned
- Point of Contact
- Contact Organization
- ESRI
- Delivery Point
- 380 New York Street
- City
- Redlands
- State
- California
- Postal Code
- 92373-8100
- Country
- USA
- Contact Telephone
- 909-793-2853
- Contact Facsimile Telephone
- 909-793-5953
- Contact Electronic Mail Address
- info@esri.com
- Hours of Service
- 7:00 a.m.-5:30 p.m. Pacific time, MondayFriday
- Native Data Set Environment
- Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.1850
- Data Quality Information
- Lineage
- Source
- Originator
- Grieve, R. A. F.
- Publication Date
- 1987
- Title
- Terrestrial Impact Structures, 1996
- Series Information
- Series Name
- Ann. Rev. Earth Planet Sci.,
- Issue Identification
- 15
- Type of Source Media
- paper
- Source
- Originator
- Grieve, R. A. F., and P. B. Robertson
- Publication Date
- 1987
- Title
- Terrestrial Impact Structures. Map 1658 A. 1
- Geospatial Data Presentation Form
- map
- Publication Information
- Publisher
- Geol. Surv. of Canada
- Source Scale Denominator
- 63000000
- Type of Source Media
- paper
- Source
- Originator
- Markushev, A. A.
- Publication Date
- 1981
- Title
- Impactity
- Publication Information
- Publisher
- Publ. House of Moscow Univ
- Type of Source Media
- paper
- Source
- Originator
- Melosh, G.
- Publication Date
- 1994
- Title
- Obrazovanie udarnykh kraterov: geologicheskij protsess, 1996
- Publication Information
- Publication Place
- New York
- Publisher
- Oxford Univ. Press
- Type of Source Media
- paper
- Source
- Originator
- Val'ter, A. A. and V. A. Rjabenko
- Publication Date
- 1977
- Title
- Vzryvnye kratery Ukrainskogo shhita
- Publication Information
- Publication Place
- Kiev
- Publisher
- Naukova Dumka
- Type of Source Media
- paper
- Spatial Data Organization Information
- Direct Spatial Reference Method
- Vector
- Point and Vector Object Information
- SDTS Terms Description
- SDTS Point and Vector Object Type
- Entity point
- Point and Vector Object Count
- 110
- Spatial Reference Information
- Horizontal Coordinate System Definition
- Geographic
- Latitude Resolution
- 0.000000
- Longitude Resolution
- 0.000000
- Geographic Coordinate Units
- Decimal degrees
- Geodetic Model
- Horizontal Datum Name
- D_Clarke_1866
- Ellipsoid Name
- Clarke 1866
- Semi-major Axis
- 6378206.400000
- Denominator of Flattening Ratio
- 294.978698
- Entity and Attribute Information
- Entity Type
- Entity Type Label
- craters
- Entity Type Definition
- Impact craters
- Attributes
- FID
- Internal feature number. (Sequential unique whole numbers that are automatically generated.)
- Definition Source
- ESRI
- Shape
- Feature geometry. (Coordinates defining the features.)
- Definition Source
- ESRI
- AREA
- Area
- PERIMETER
- Perimeter
- AUTERDD_
- Australia
- AUTERDD_ID
- Australia ID
- NAME
- The place where an impact crater is located
- DIAMETER
- The diameter of a crater in kilometers
- AGE
- The estimated age of a crater (million years).
- FIPS_CNTRY
- Country code
- POLYGONID
- ID number
- SCALE
- Scale
- ANGLE
- Angle
- ASTERDD_
- Asia
- ASTERDD_ID
- Asia ID
- AFTERDD_
- Africa
- AFTERDD_ID
- Africa ID
- EUTERDD_
- Europe
- EUTERDD_ID
- Europe ID
- NATERDD_
- North America
- NATERDD_ID
- North America ID
- SATERDD_
- South America
- SATERDD_ID
- South America ID
- Distribution Information
- Format Name
- geopackage
- Distributor
- ESRI; ESRI International Distributors
- Name
- Metadata Reference Information
- Metadata Date
- 20090617
- Metadata Contact
- Contact Information
- Contact Organization Primary
- Contact Organization
- Research Data Services (RDS), Columbia University Libraries
- Contact Person
- GIS/Metadata Librarian
- Contact Address
- Address
- 420 W. 118th St. 215 IAB, MC 3301
- City
- New York
- State or Province
- NY
- Postal Code
- 10027
- Country
- USA
- Contact Voice Telephone
- (212) 854-6012
- Contact Electronic Mail Address
- data@library.columbia.edu
- Hours of Service
- 7:00 a.m.-5:30 p.m. Pacific time, Monday-Friday
- Metadata Standard Name
- FGDC Content Standards for Digital Geospatial Metadata
- Metadata Standard Version
- FGDC-STD-001-1998
- Metadata Extensions
- Online Linkage
- http://www.esri.com/metadata/esriprof80.html
- Profile Name
- ESRI Metadata Profile
