Paleontological Notes About Tertiary Echinoderms From Northeast Libya

Khameiss, Belkasim; Fluegeman, Richard H.; Hoyt, William H.

doi:10.1130/abs/2017ne-290129

Cited by 3 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Oligocene is well-known and studied primarily in Italy [16] (Pfister, 1980). A recent study in the Oligocene reef in eastern Libya described the species in this reef as Antiquastrea sp., and high crustose coralline red algae ( [7] greenhouse at this time. The nine locations used in this study are identified on a modern map of the world (Figure 1).…”

Section: Introduction and Settingsmentioning

confidence: 86%

Competition between Coral and Algae in Tertiary and Quaternary Reefs: Greenhouse to Icehouse Transitions

Khameiss,

Fluegeman,

Hoyt

et al. 2024

JEP

View full text Add to dashboard Cite

The competition between coral and algae in marine reefs is pervasive through geologic time; that competition determines the structure and composition of reef communities, which we see in the fossil record. However, the relationships between coral and calcareous algae in reefs are poorly understood. To study this relationship, several hand samples and thin sections were examined from nine different foralgal reef localities around the world. Foralgal reefs typically extend from about 20 m depth or shallower on the seaward side of the reef. The first section is Salt Mountain, Alabama, which preserves a Paleocene reef. It contains a high percentage of red coralline algae with benthic foraminifera. The second section is IDOP-U1376, IIA Limestone, it is Middle Eocene, in the form of an isolated reef sandwiched between two igneous beds. The third section is the Utoe' Limestone, New Caledonia, it is Middle Eocene in age and is composed mainly of grain-boundstone units with some igneous interlayered. The fourth section is the Darnah Formation in the West-Darnah roadcut section, Northeast Libya, it is Middle Eocene in age, it is composed of highly fossiliferous limestone (corals, red coralline algae, echinoids, mollusks, foraminifers, and bryozoans). The fifth section, the Al Bayda Formation (Algal Limestone Member) in Northeast Libya, is in the Drayanah-Al Abyar roadcut, Northeast Libya, it has several species of algae but also includes a high percentage of buildups of coral species. The sixth section is the Oligo-Miocene Al Faidiyah Formation (Al Fatayah Cement Quarry) limestone unit in Northeast Libya. The seventh section is (Core-core 20) late-early to middle Miocene Limestone Unit-Cicuco Field, NW Colombia. The eighth section is the Benghazi Formation at Benghazi

show abstract

Section: Introduction and Settingsmentioning

confidence: 86%

Competition between Coral and Algae in Tertiary and Quaternary Reefs: Greenhouse to Icehouse Transitions

Khameiss,

Fluegeman,

Hoyt

et al. 2024

JEP

View full text Add to dashboard Cite

show abstract

“…Notably, the Mediterranean Sea's deepest point maintains a temperature of 13.2 degrees Celsius. Furthermore, the Mediterranean Sea contributes a substantial volume of water to the Atlantic Ocean, estimated at approximately 70,000 cubic meters per second, or an annual flow rate of 2.2 × 10 12 cubic meters (7.8 × 10 13 cubic feet) [9] [10] [11] [12]. The Mediterranean Sea, covering an expanse of approximately 2,500,000 square kilometers (970,000 square miles), represents just 0.7% of the Earth's total oceanic surface.…”

Section: Introductionmentioning

confidence: 99%

Diversity, Ecology, and Environmental Significance of Foraminifera in Al Hamama and Susah Coastal Regions, Northeastern Libya: Insights from Holocene Sediments

Khameiss,

Zubi

2024

JEP

View full text Add to dashboard Cite

This research initiative, conducted along the coastal zones of Al Hamama and Susah in northeastern Libya, aimed to enhance our understanding of Holocene benthic foraminifera assemblages and the paleoenvironmental parameters in the region. We meticulously gathered five sediment samples to analyze the composition of foraminifera populations within the unconsolidated sedimentary deposits adjacent to these locations. We successfully identified nine distinct benthic foraminifera species, including Amphistegina lobifera, Eliphidium crispum, Sigmoilinita tenuis, Sorites orbiculus, Stomatorbina concentrica, Peneroplis planatus, Pseudotriloculina rotunda, Pyrgoella sphaera, and Triloculina schreberiana. Notably, Eliphidium crispum and Amphistegina lobifera emerged as the most prevalent species. These foraminifera species

show abstract

“…The tertiary exposed rocks in this area are represented by nine rock units separated from each other by unconformity surfaces in Figure 2, these are from bottom to top as follows: 1) Al Uwayliah Formation composes of chalky limestone, soft and enriched with planktic and calcareous nannofossils of Landenian age at its upper exposed section, However, it is well bedded and hard with rare planktic foraminifers of Danian age at its lower exposed part, although its middle part is not exposed, a series problem in the definition of Al Uwayliah Formation, this issue was discussed by [7]. There are no reefal facies in this formation [8] [9].…”

Section: Stratigraphic Backgroundmentioning

confidence: 99%

A Preliminary Documentation of the Coral Reefs from Libya

Khameiss¹,

Hoyt²,

Ebaidi³

et al. 2016

OJG

Self Cite

View full text Add to dashboard Cite

Corals studies in Libya are very limited, although they play an important role in the oil exploration as they form excellent reservoirs of coral reef buildups at some oil fields of Sirt Basin (e.g. Intisar "Idris" and Sahabi Fields). Both fields are produced from Paleocene coral reefs. Meanwhile, in Cyrenaica, corals are of less importance as they are not reported in subsurface tertiary rocks, which probably in the environmental settings of these sediments out of the core of reef as occurred in the surface. Meanwhile, corals are reported from older (Jurassic) subsurface successions as in Concession NC-152, but the cementation diagenesis leads to blocking and destroying the porosity. This study presents the first surface documentation work of eight scleractinian coral species from the exposed sediments in northern Libya, where sixtaxa is reported from Al Jabal al Akhdar region, these include a) an association of huge colonies of Caulastrea sp. and Stylophora sp.

show abstract

Paleontological Notes About Tertiary Echinoderms From Northeast Libya

Cited by 3 publications

References 0 publications

Competition between Coral and Algae in Tertiary and Quaternary Reefs: Greenhouse to Icehouse Transitions

Competition between Coral and Algae in Tertiary and Quaternary Reefs: Greenhouse to Icehouse Transitions

Diversity, Ecology, and Environmental Significance of Foraminifera in Al Hamama and Susah Coastal Regions, Northeastern Libya: Insights from Holocene Sediments

A Preliminary Documentation of the Coral Reefs from Libya

Contact Info

Product

Resources

About