Structural Measurement Atlas
Atlas / States / New York

New York strike and dip data

7,202 structural measurements in New York, digitized from 192 published geologic maps across 6 sources. Every row carries its azimuth, inclination, measurement type, location confidence and the citation of the map it came from.

Open New York on the map

What kinds of measurement

The Atlas separates planar structures, recorded as a strike and dip, from linear ones, recorded as a trend and plunge. This is what New York holds:

Measurement typeGeometryMeasurementsShare
Foliation Planar — strike and dip 2,15730%
Other Planar — strike and dip 2,13030%
Joint Planar — strike and dip 1,56222%
Lineation (mineral, stretching) Linear — trend and plunge 4947%
Bedding Planar — strike and dip 3255%
Vein / dike Planar — strike and dip 2714%
Fold hinge / axis Linear — trend and plunge 1572%
Fault plane Planar — strike and dip 66<1%
Cleavage Planar — strike and dip 30<1%
Slickenline Linear — trend and plunge 10<1%

Where the data comes from

Each source is a survey, agency or program whose published mapping was harvested and reconciled into one schema. Rows are published only where the source's terms permit redistribution.

Most-measured published maps

The individual quadrangles and data releases contributing the most measurements in New York. The full citation for every map behind a selection ships in the sources.csv of any export.

Published mapYearScaleMeasurements
DASCPNYVT001 1:24,0004,263
Quaternary geologic map of the Hudson River 4 degrees x 6 degrees quadrangle, United States and Canada1992 1:1,000,0001,599
Quaternary geologic map of the Ottawa 4 degrees x 6 degrees quadrangle, United States and Canada1993 1:1,000,000400
Bedrock geology of the Ellsworth and eastern part of the Amenia quadrangles, Connecticut and New York [Originally released in 1986 as M.S. Thesis, Univ. of Massachusetts, Amherst, MA]2019 1:24,000330
Quaternary geologic map of the Lake Erie 4 degrees x 6 degrees quadrangle, United States and Canada1991 1:1,000,000181
adapted from: Sevon, W.D., Berg, Thomas M., and Schultz, Lane D., 1989, Geology and Mineral Resources of Pike County, Pennsylvania: Pennsylvania Geological Survey, County Report 52, 141p., plate 1 (Bedrock Geologic Map), scale 1:50,0002023 50000108
adapted from: Fisher, D. W., 1968, Draft Geologic Map of the Hyde Park New York 7.5' Quadrangle: New York Geological Survey, Open File Report of-1gG745b (unpublished), scale 1:24,0002023 24000100
DASCPNYVT125 1:24,00010
crenpt 2400010
schistpt 240003
Clifton Mine — https://mrdata.usgs.gov/mrds/show-mrds.php?dep_id=10082198 2
Croton-Mc Collum Magnetite Mine — https://mrdata.usgs.gov/mrds/show-mrds.php?dep_id=10067395 2
Dead Creek Occurrence — https://mrdata.usgs.gov/mrds/show-mrds.php?dep_id=10082197 2
Green Farm Deposit — https://mrdata.usgs.gov/mrds/show-mrds.php?dep_id=10106347 2
Hardwood Mill Occurrence — https://mrdata.usgs.gov/mrds/show-mrds.php?dep_id=10082202 2

Most-measured map units

Where a source recorded the geologic unit a measurement was taken on, the Atlas keeps it. These are the units carrying the most measurements in New York.

Map unitAgeLithologyMeasurements
Migmatitic biotite gneiss member of the Grenville Complex Ybg MesoproterozoicMetasedimentary rock1,468
Leucogranite gneiss of the Lyon Mountain Granite Gneiss Ylg MesoproterozoicMedium and high-grade regional metamorphic rock, of unspecified origin1,317
Amphibolite gneiss member of the Grenville Complex Ya MesoproterozoicMedium and high-grade regional metamorphic rock, of unspecified origin420
Rusty garnet-sillimanite gneiss member of the Grenville Complex Ysi MesoproterozoicMedium and high-grade regional metamorphic rock, of unspecified origin223
Granitic augen gneiss Yggn MesoproterozoicMedium and high-grade regional metamorphic rock, of unspecified origin173
Yd 136
Marble and calc-silicate gneiss member of the Grenville Complex Ym MesoproterozoicMeta-carbonate rock129
Pegmatite Yp MesoproterozoicCoarse-grained, felsic-composition intrusive igneous rock84
Transitional migmatitic paragneiss and leucogranite gneiss of the Lyon Mountain Granite Gneiss Ylgt MesoproterozoicMedium and high-grade regional metamorphic rock, of unspecified origin74
Clinopyroxene-hornblende granitic gneiss Yhg MesoproterozoicMedium and high-grade regional metamorphic rock, of unspecified origin64
Cl 60
Cic 49

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