Geologic map of the Big Delta A-4 Quadrangle, Alaska

This map illustrates extents and types of unconsolidated deposits and bedrock in the Big Delta A-4 Quadrangle, Alaska. This map is based on field observations begun by P�w� in 1949 and by Reger in 1976. Unit characteristics and extents were determined during field visits and by interpreting 1:40,000-scale black-and-white aerial photographs taken in August 1949 and 1:63,360-scale, false-color infrared aerial photographs taken in July 1978, August 1980, and August 1981.

Data and Resources

Field Value
access_constraints ["Use Constraints: Any hard copies or published data sets utilizing these data sets shall clearly indicate their source. If the user has modified the data in any way, the user is obligated to describe the types of modifications the user has made. User specifically agrees not to misrepresent these data sets, nor to imply that changes made by the user were approved by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys.", "Access Constraints: This report, map, and/or data set are available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (see contact information below)."]
bbox-east-long -145.486467
bbox-north-lat 64.254273
bbox-south-lat 63.995698
bbox-west-long -146.008943
contact-email dggspubs@alaska.gov
coupled-resource []
dataset-reference-date [{"type": "publication", "value": "2002-01-01"}]
frequency-of-update notPlanned
licence ["The State of Alaska makes no express or implied warranties (including warranties of merchantability and fitness) with respect to the character, function, or capabilities of the electronic services or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products, any failure thereof, or otherwise, and in no event will the State of Alaska's liability to the requester or anyone else exceed the fee paid for the electronic service or product."]
metadata-date 2008-05-06
metadata-language eng; USA
metadata_type geospatial
progress completed
resource-type dataset
responsible-party [{"name": "State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys", "roles": ["pointOfContact"]}]
spatial {"type": "Polygon", "coordinates": [[[-146.008943, 63.995698], [-145.486467, 63.995698], [-145.486467, 64.254273], [-146.008943, 64.254273], [-146.008943, 63.995698]]]}
spatial_harvester true
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • alaska-range
  • alluvium
  • amerigeo
  • amerigeoss
  • big-delta
  • big-delta-quadrangle
  • cenozoic
  • ckan
  • delta-river
  • geo
  • geology
  • geoss
  • glaciation
  • holocene
  • jarvis-creek-ash
  • loess
  • national
  • north-america
  • outwash
  • paleozoic
  • permafrost
  • pleistocene
  • precambrian
  • quaternary
  • radiocarbon-dating
  • silt
  • surficial-geology
  • tanana-river
  • tephra
  • till
  • united-states
isopen False
metadata_created 2025-11-21T11:35:25.528240
metadata_modified 2025-11-21T11:35:25.528244
notes This map illustrates extents and types of unconsolidated deposits and bedrock in the Big Delta A-4 Quadrangle, Alaska. This map is based on field observations begun by P�w� in 1949 and by Reger in 1976. Unit characteristics and extents were determined during field visits and by interpreting 1:40,000-scale black-and-white aerial photographs taken in August 1949 and 1:63,360-scale, false-color infrared aerial photographs taken in July 1978, August 1980, and August 1981.
num_resources 3
num_tags 31
title Geologic map of the Big Delta A-4 Quadrangle, Alaska