scholarly journals Supplemental Material: Recognizing tide- and wave-dominated compound deltaic clinothems in the rock record

2020 ◽  
Author(s):  
Yang Peng ◽  
et al.
Keyword(s):  
Orinoco Delta ◽  
Rock Record

Fig. S1: Modern examples; Fig. S2: Compound-clinoform deltas in modern Orinoco Delta; Fig. S3: Recognition diagram for tide-dominated compound-clinoform deltas; Fig. S4: Recognition diagram for wave-dominated compound-clinoform deltas; and Fig. S5: Measured section of a wave-dominated compound-clinoform delta.

scholarly journals Supplemental Material: Recognizing tide- and wave-dominated compound deltaic clinothems in the rock record

2020 ◽  
Author(s):  
Yang Peng ◽  
et al.
Keyword(s):  
Orinoco Delta ◽  
Rock Record

Fig. S1: Modern examples; Fig. S2: Compound-clinoform deltas in modern Orinoco Delta; Fig. S3: Recognition diagram for tide-dominated compound-clinoform deltas; Fig. S4: Recognition diagram for wave-dominated compound-clinoform deltas; and Fig. S5: Measured section of a wave-dominated compound-clinoform delta.

SUBDUCTION ZONE REDOX: EXTRACTING FO2 FROM THE ROCK RECORD

2020 ◽  
Author(s):  
Natalie H. Raia ◽  
◽  
Donna L. Whitney ◽  
Christian Teyssier
Keyword(s):  
Subduction Zone ◽  
Rock Record

An anthropogenic marker horizon in the future rock record

GSA Today ◽  
2014 ◽  
pp. 4-8 ◽  
Author(s):  
Patricia L. Corcoran ◽  
Charles J. Moore ◽  
Kelly Jazvac
Keyword(s):  
Rock Record ◽  
The Future ◽  
Anthropogenic Marker

Glossifungites gingrasi n. isp., a probable subaqueous insect domicile from the Cretaceous Ferron Sandstone, Utah

2021 ◽  
pp. 1-13
Author(s):  
M. Ryan King ◽  
Andrew D. La Croix ◽  
Terry A. Gates ◽  
Paul B. Anderson ◽  
Lindsay E. Zanno
Keyword(s):  
Coastal Plain ◽  
Upper Cretaceous ◽  
Filter Feeding ◽  
Chironomid Larvae ◽  
Large Size ◽  
Rock Record ◽  
Axis Parallel ◽  
Freshwater Fauna

Abstract A new ichnospecies, Glossifungites gingrasi n. isp., is described from multiple locations in basal sand-filled coastal plain distributary channels of the Turonian (Upper Cretaceous) Ferron Sandstone (central Utah). Glossifungites gingrasi n. isp. is attributed to the ichnogenus Glossifungites based on the presence of scratch imprints, passive fill, and a tongue-shaped structure, yet the new ichnospecies is distinct because it displays transverse bioglyphs that run perpendicular to the planiform structure, which contrasts to the axis parallel bioglyphs present in the ichnospecies G. saxicava. The transverse arrangement of ornamentation exhibited by G. gingrasi n. isp. is observed in modern subaqueous insect burrows produced by mayfly and chironomid larvae, and constitutes a way to differentiate insect-generated burrows from structures produced by crustaceans that are known to create other Glossifungites ichnospecies. Differentiating insect- from crustacean-generated burrows is significant because it provides a way to distinguish bioturbation by marine-recruited fauna from that produced by freshwater fauna in the rock record, making G. gingrasi n. isp. a valuable ichnological tool for paleoenvironmental and stratigraphic interpretation. While G. gingrasi n. isp. may represent a burrow created by a variety of filter-feeding subaqueous insects, the large size of G. gingrasi n. isp. in the Ferron Sandstone suggests that the largest specimens are probable mayfly burrows and supports the assertion that burrowing mayflies (e.g., Polymitarcyidae and Ephemeridae) adapted to domicile filter-feeding during or prior to the Turonian. UUID: http://zoobank.org/a033b22f-bf09-481a-975e-3a1b096154cc

The Use of Drilling Solid Waste as Amendment of Acid-Sulphate Soils of the Orinoco Delta

1996 ◽  
Author(s):  
P. Vasquez ◽  
J. Urich ◽  
V. Gonzalez ◽  
P. Silva ◽  
A. Rodriguez
Keyword(s):  
Solid Waste ◽  
Acid Sulphate ◽  
Acid Sulphate Soils ◽  
Orinoco Delta

scholarly journals Trade and the conservation status of the family Psittacidae in Venezuela

1991 ◽  
Vol 1 (2) ◽  
pp. 153-169 ◽  
Author(s):  
Philip Desenne ◽  
Stuart D. Strahl
Keyword(s):  
Conservation Status ◽  
Field Studies ◽  
Remedial Action ◽  
Trade Data ◽  
Orinoco Delta ◽  
The Family ◽  
Priority Order ◽  
Key Sites ◽  
Educational Campaigns ◽  
National Trade

SummaryAn assessment of trade in parrots throughout Venezuela, 1988–1989, reveals alarmingly high internal and international levels. The national trade has main outlets in major cities, but is now compounded by the use of feathers for Indian artifacts sold to tourists. International trade involves illegal export chiefly from the Orinoco Delta, the majority of such birds (65,000–75,000) destined for Guyana. The large macaws suffer badly from both types of trade, but owing to its restricted range the endemic Amazona barbadensis is perhaps the most critically threatened species. Other species are assessed and, along with key sites, identified in priority order for remedial action, which should include more detailed field studies, rigorous trade data analysis, exchange of trade data with major neighbours, census and monitoring technique improvements, educational campaigns, and strict breeding facility control.

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