# Feltville Formation > Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Feltville_Formation > Markdown URL: https://mediated.wiki/source/Feltville_Formation.md > Source: https://en.wikipedia.org/wiki/Feltville_Formation > Source revision: 1295435455 > License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) {{Infobox rockunit | name = Feltville Formation | period = Hettangian | age = [Hettangian](/source/Hettangian)
~{{Geological range|199|196}} | image = 2ndWatchungMountain_FeltvilleFormation.jpg | type = [Geological formation](/source/Geological_formation) | prilithology = [Sandstone](/source/Sandstone), [siltstone](/source/siltstone), [mudstone](/source/mudstone) | otherlithology = [Limestone](/source/Limestone) | namedfor = [Deserted Village of Feltville, New Jersey](/source/Feltville_Historic_District)Olsen, P.E., 1980. The Latest Triassic and Early Jurassic Formations of the Newark Basin (Eastern North America, Newark Supergroup): Stratigraphy, Structure, and Correlation. ''New Jersey Academy of Science Bulletin'', v. 25, no. 2, p. 25-51. | namedby = [Paul E. Olsen](/source/Paul_E._Olsen) | year_ts = 1980 | region = [Newark Basin](/source/Newark_Basin) of
[Eastern North America Rift Basins](/source/Eastern_North_America_Rift_Basins) | caption = Exposure of Feltville Formation sandstone beneath a ledge of Preakness Basalt on [Preakness Mountain](/source/Preakness_Range) in New Jersey. | unitof = [Newark Supergroup](/source/Newark_Supergroup)
 [Meriden Group](/source/Meriden_Group) | underlies = [Preakness Basalt](/source/Preakness_Basalt) | overlies = [Orange Mountain Basalt](/source/Orange_Mountain_Basalt) | thickness = maximum of {{convert|1,968|ft|m|-1}} | extent = continuous for ~{{convert|40|mi|km}} in [New Jersey](/source/New_Jersey),
with [outliers](/source/Watchung_Outliers) present in
New Jersey, [New York](/source/New_York_(state))
& [Pennsylvania](/source/Pennsylvania) | coordinates = {{coord|40.8|N|74.3|W|display=inline,title}} | paleocoordinates = {{coord|21.4|N|20.7|W|display=inline}} | map = {{Location map+ | United States#New Jersey | relief = 1 | width = 250 | float = center | places = {{Location map~ | United States#New Jersey | lat_deg = 40.8 | lon_deg = -74.3 | mark = Blue pog.svg | marksize = 12 }} }} }} The '''Feltville Formation''' is a mapped bedrock unit primarily in [New Jersey](/source/New_Jersey), with one known [outlier](/source/Watchung_Outliers) in [Pennsylvania](/source/Pennsylvania) and another one in [New York](/source/New_York_(state)). It is named for the [Deserted Village of Feltville](/source/Feltville_Historic_District) in [Watchung Reservation](/source/Watchung_Reservation), New Jersey, which is near where its type section was described by paleontologist [Paul E. Olsen](/source/Paul_E._Olsen). == Description == The Feltville Formation is composed of red, gray, and white sandstone of varying grain thickness, as well as red, gray, and black siltstone and calcareous mudstone. Sandstone/siltstone layers tend to be alternatingly massive and cross-bedded. Black to white carbonaceous limestone layers exist near the base of the formation.[https://mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=NJJf%3B5 Mineral Resources Online Spatial Data – Feltville Formation, New Jersey]. U.S. Geological Survey. Accessed July 23, 2010. Additionally, pebbles and cobbles of quartz are embedded within layers of sandstone and siltstone that interfinger with the Feltville Formation near [Oakland, New Jersey](/source/Oakland%2C_New_Jersey). === Depositional environment === The Feltville Formation can be characterized as a continuation of the [Passaic Formation](/source/Passaic_Formation), which is mostly [playa](/source/Dry_lake) and [alluvial fan](/source/alluvial_fan) deposits resulting from the rifting of [Pangea](/source/Pangea). The primarily red color of this formation is often evidence that the sediments were deposited in arid conditions.Faill, R.T., (2004). The Birdsboro Basin. ''Pennsylvania Geology'' V. 34 n. 4. However, the Feltville Formation differs from the Passaic Formation in that it contains a more significant portion of non-red layers, which were laid down by deep lakes present during wetter periods.Schlische, Roy W. [http://geology.rutgers.edu/103web/Newarkbasin/NB_text.html Geology of the Newark Rift Basin] {{Webarchive|url=https://web.archive.org/web/20210604164004/https://geology.rutgers.edu/103web/Newarkbasin/NB_text.html |date=2021-06-04 }}. Department of Geological Sciences, Rutgers University, Piscataway, NJ. Accessed July 23, 2010. === Fossils === Fish fossils, commonly those of the ray-finned ''[Semionotus](/source/Semionotus)'', can be found in limestone layers within the formation. In other layers, indeterminate fossil [ornithischian](/source/ornithischian) tracks have been noted,Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607. along with additional reptile and dinosaur prints. Fossil plant remains, as well as root structures and pollen, are also found in the formation. == Age == The Feltville Formation rests conformably above the [Orange Mountain Basalt](/source/Orange_Mountain_Basalt) and below the [Preakness Basalt](/source/Preakness_Basalt), placing its deposition somewhere between approximately 199 and 196 million years ago during the early Jurassic stage known as the [Hettangian](/source/Hettangian). == Economic geology == The Feltville Formation was once mined for [freestone](/source/freestone_(masonry)), as indicated by a historical work detailing quarrying operations at the base of [Preakness Mountain](/source/Preakness_Range) in New Jersey.Gordon, Thomas Francis. A Gazetteer of the State of New Jersey – Comprehending a General View of its Physical and Moral Condition, together with a Topographical and Statistical Account of its Counties, Towns, Villages, Canals, Railroads, &c. Published by D. Fenton, 1834. [https://books.google.com/books?id=BnIFAAAAQAAJ&pg=RA1-PA8 Available via Google Books] == See also == * [Geology of New Jersey](/source/Geology_of_New_Jersey) * [Geology of Pennsylvania](/source/Geology_of_Pennsylvania) * [Lists of dinosaur-bearing stratigraphic units](/source/Lists_of_dinosaur-bearing_stratigraphic_units) ** [List of stratigraphic units with ornithischian tracks](/source/List_of_stratigraphic_units_with_ornithischian_tracks) *** [Indeterminate ornithischian tracks](/source/List_of_stratigraphic_units_with_ornithischian_tracks) == References == {{Reflist}} === Bibliography === * {{citation |last1=Weishampel |first1=David B. |author2-link=Peter Dodson |last2=Dodson |first2=Peter |author3-link=Halszka Osmólska |last3=Osmólska |first3=Halszka |year=2004 |title=The Dinosauria, 2nd edition |url=https://books.google.com/books?id=vtZFDb_iw40C |publisher=Berkeley: University of California Press |pages=1–880 |accessdate=2019-02-21 |isbn=0-520-24209-2 |author1-link=David B. Weishampel }} {{Geology of the Newark Basin}} Category:Geologic formations of New Jersey Category:Geologic formations of New York (state) Category:Geologic formations of Pennsylvania Category:Hettangian Stage Category:Jurassic geology of New Jersey Category:Sandstone formations of the United States Category:Siltstone formations of the United States Category:Mudstone formations of the United States Category:Alluvial deposits Category:Ichnofossiliferous formations Category:Paleontology in New Jersey Category:Paleontology in New York (state) Category:Paleontology in Pennsylvania Category:Limestone formations of the United States --- Adapted from the Wikipedia article [Feltville Formation](https://en.wikipedia.org/wiki/Feltville_Formation) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Feltville_Formation?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.