- Usage in publication:
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- Raging River Formation*
- Modifications:
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- Named
- Biostratigraphic dating
- Dominant lithology:
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- Sandstone
- Siltstone
- Claystone
- AAPG geologic province:
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- Puget Sound province
Summary:
Named for Raging River whose northwesterly course partly defines eastern base of Tiger Mountain in central King Co, WA. Type area designated on east side of Tiger Mountain in parts of secs.9,10,15 and 16 T23N R7E, directly west of valley of Raging River. Consists of fine-grained sandstone, siltstone, and claystone beds characterized by abundant marine fauna. These beds are commonly dark gray, thick bedded, hard, and weather into massive ledges. Interbedded with the harder strata are several units of friable rock as much as 200 ft thick consisting of fine- to coarse-grained sandstone, siltstone, and chert pebble conglomerate. Thickness is about 3000 ft. Lower part of formation complicated by faulting, by intrusion of igneous sills, and by baking and partial recrystallization of rock. Base covered by extensive glacial deposits. Upper contact placed at top of unit of fossil-bearing dark-gray claystone about 160 ft thick that is overlain by gray nonfossiliferous micaceous sandstone. Underlies Tiger Mountain Formation (new) of Puget Group; contact is conformable and transitional. Is older than Cowlitz Formation and widely separated from it. Foraminifera identified by W.W. Rau (written commun., 1961) and Mollusca (identified by F.S. MacNeil) indicate middle and late(?) Eocene age.
Source: GNU records (USGS DDS-6; Menlo GNULEX).
- Usage in publication:
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- Raging River Formation*
- Modifications:
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- Age modified
- AAPG geologic province:
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- Puget Sound province
Summary:
"In Tiger Mountain area, Puget Group rests gradationally on marine beds of Raging River Formation (of middle Eocene age). Fossil plants from just above marine beds are same age as those in about middle of Green River canyon section; hence, Raging River correlates with at least part of lower half of Puget Group as exposed in Green River canyon." [Note author refers to Raging River as middle Eocene age only].
Source: GNU records (USGS DDS-6; Menlo GNULEX).
- Usage in publication:
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- Raging River Formation*
- Modifications:
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- Age modified
- Biostratigraphic dating
- AAPG geologic province:
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- Puget Sound province
Summary:
Age of Raging River Formation [in text] is given as late early to early middle Eocene on basis of foraminifers of late Ulatisian age (Rau, 1981). "Armentrout (1981, fig.2) placed the Ulatisian Stage in the late early to early middle Eocene". p.530. [Note however that fig.3, p.529, shows Raging River Formation and overlying Tiger Mountain Formation as middle Eocene age.]
Source: GNU records (USGS DDS-6; Menlo GNULEX).
- Usage in publication:
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- Raging River Formation*
Summary:
Not compiled to date. Publication available online: http://ngmdb.usgs.gov/Prodesc/proddesc_10042.htm
Raging River Formation. Age is middle Eocene.
Source: Publication.
- Usage in publication:
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- Raging River Formation*
- Modifications:
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- Age modified
- AAPG geologic province:
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- Puget Sound province
Summary:
Age of the Raging River Formation is revised from middle Eocene to: early(?) and middle Eocene based of fossils [benthic foraminifers] and stratigraphic position.
Source: GNU records (USGS DDS-6; Menlo GNULEX).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).
Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).