Type Shapefile
To show the general geology of Chuuk.
This dataset shows the general geology of the islands in Chuuk Lagoon. The data layer was created by Island Research & Education Initiative (iREi) (2020) by scanning, georeferencing, and digitizing a set of paper maps prepared under the direction of the Engineer, Hq AFFE/8A, by the US Army Map Service, Far East; based on field investigations by the Military Geology Branch, Intelligence Division, Office of the Engineer, Hq, US Army Japan. Fieldwork conducted in 1954-1955 by JT Stark, RL Hay, HG May, and ED Patterson; maps are titled "Geology, Truk Islands" and were compiled in 1957 by photogrammetric (multiplex) methods.
Original hardcopy map by U.S. Geological Survey GIS dataset by Island Research & Education Initiative (iREi)
There are no expressed warranties associated with the release of these databases. Specifically, no warranty is made that the GIS data or any subsequent updates will be error free and no warranty is made regarding the positional or thematic accuracy of the GIS data. The GIS data and any features it depicts do not represent or confer any legal rights, privileges, benefits, boundaries or claims of any kind.
There is no extent for this item.
There is no scale range for this item.
The dataset is included in the Digital Atlas of Micronesia, module Chuuk, by Island Research & Education Initiative (iREi) in collaboration with Water and Environmental Research Institute of the Western Pacific (WERI) at the University of Guam and funding from United States Geological Survey (USGS) under WRRI 104-B Program and FSM Department of Environment, Climate Change & Emergency Management (DECEM).
Original hardcopy map by U.S. Geological Survey GIS dataset by Island Research & Education Initiative (iREi)
There are no expressed warranties associated with the release of these databases. Specifically, no warranty is made that the GIS data or any subsequent updates will be error free and no warranty is made regarding the positional or thematic accuracy of the GIS data. The GIS data and any features it depicts do not represent or confer any legal rights, privileges, benefits, boundaries or claims of any kind.
The positional accuracy of the original data is not known. This dataset is very general.
a. Scanned and georeferenced map to updated 2016 shoreline; b. Copied base layer and divided land polygon into varios sections based on paper map; c. Added attributes shown on the map and additional attributes such as source, area etc.
To create a digital file in GIS format.
The map was created by the U.S. Geological Survey (1944) for the Chief of Engineers, U.S. Army. A photocopy of the map was found in the library collection at the national campus of the College of Micronesia (COM).
Original paper map
Feature geometry.
Esri
Coordinates defining the features.
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
Original data
Area in square meters
Area in hectares
Area in square kilometers
Area in acres