Biogenic structures in upper Devonian storm deposits in Catskill Deltaic Complex, New York
Conference
·
· Am. Assoc. Pet. Geol., Bull.; (United States)
OSTI ID:5165970
Trace fossils and biogenic structures are moderately abundant in sandstones of the Genesee Group. These rocks are well exposed in a quarry at Gilbert Lake State Park, east-central New York, where they are interpreted as storm deposits. The biogenic structures given important information about the behavior of Devonian animals colonizing the freshly deposited sediment. Within the sandstones, trace-fossil diversity is low. The most abundant trace fossil is a small (1 mm diameter) branching burrow system (.Chondrites). Other common forms are vertical to horizontal meniscate burrows, horizontally oriented spreite-bearing forms (.Rhizocorallium-.Zoophycos), and vertical burrows (Skolithos). Except for Skolithos, the trace fossils are highly variable morphologically (e.g., the mensicate burrows apparently pass laterally into .Rhizocorallium-.Zoophycos). Commonly, the top 8-10 cm of inferred storm deposits are highly bioturbated, whereas the lower 20-25 cm typically are undisturbed. .Chondrites extends to depths more than 20 cm below the top of the burrowed zone, implying that its producer burrowed to equivalent depths. Two generalizations about the behavior of Devonian animals colonizing storm deposits can be made. (1) Their behavior was changeable, as indicated by diverse orientations and morphologic variability of the trace fossils. (2) They had a moderately deep infaunal habit, indicated by the abundance of burrowing in the top 8-10 cm of storm deposits.
- Research Organization:
- Vanderbilt Univ., Nashville, TN
- OSTI ID:
- 5165970
- Report Number(s):
- CONF-860624-
- Conference Information:
- Journal Name: Am. Assoc. Pet. Geol., Bull.; (United States) Journal Volume: 70:5
- Country of Publication:
- United States
- Language:
- English
Similar Records
Estuarine trace fossil assemblages in Tournaisian Clashmelcon Formation, Kerry Head, southwest Ireland
Silurian trace fossils in carbonate turbidites from the Alexander Arc of southeastern Alaska
Trace fossils of Marnoso-Arenacea Formation (Miocene), northern Italy: preliminary data
Conference
·
Fri May 01 00:00:00 EDT 1987
· AAPG (Am. Assoc. Pet. Geol.) Bull.; (United States)
·
OSTI ID:6050799
Silurian trace fossils in carbonate turbidites from the Alexander Arc of southeastern Alaska
Conference
·
Tue May 01 00:00:00 EDT 1990
· AAPG Bulletin (American Association of Petroleum Geologists); (USA)
·
OSTI ID:6601921
Trace fossils of Marnoso-Arenacea Formation (Miocene), northern Italy: preliminary data
Conference
·
Sun Jan 31 23:00:00 EST 1988
· AAPG (Am. Assoc. Pet. Geol.) Bull.; (United States)
·
OSTI ID:5953635