Effect provenance of organic matters in surface sediments from coastal stations in the Gulf of Suez Gulf, Egypt: An implication from occurrence of triterpanes and steranes fragmentgrams

2018 ◽  
Vol 36 (16) ◽  
pp. 1286-1291 ◽  
Author(s):  
Abedel Aziz A. Elfadly ◽  
Mohamed M. El Nady ◽  
Omayma E. Ahmed
Keyword(s):  
Surface Sediments ◽  
Gulf Of Suez ◽  
Organic Matters ◽  
Suez Gulf

scholarly journals Environmental Risk Assessment of Petroleum Activities in Surface Sediments, Suez Gulf, Egypt

2021 ◽  
Vol 9 (5) ◽  
pp. 473
Author(s):  
Magda M. Abou El-Safa ◽  
Mohamed Gad ◽  
Ebrahem M. Eid ◽  
Ashwaq M. Alnemari ◽  
Mohammed H. Almarshadi ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Heavy Metal ◽  
Surface Sediment ◽  
Surface Sediments ◽  
Surf Zone ◽  
Risk Index ◽  
Negative Relationship ◽  
Anthropogenic Sources ◽  
Suez Gulf

The present study focuses on the risk assessment of heavy metal contamination in aquatic ecosystems by evaluating the current situation of heavy metals in seven locations (North Amer El Bahry, Amer, Bakr, Ras Gharib, July Water Floud, Ras Shokeir, and El Marageen) along the Suez Gulf coast that are well-known representative sites for petroleum activities in Egypt. One hundred and forty-six samples of surface sediments were carefully collected from twenty-seven profiles in the intertidal and surf zone. The hydrochemical parameters, such as pH and salinity (S‰), were measured during sample collection. The mineralogy study was carried out by an X-ray diffractometer (XRD), and the concentrations of Al, Mn, Fe, Cr, Cu, Co, Zn, Cd, and Pb were determined using inductively coupled plasma mass spectra (ICP-MS). The ecological risks of heavy metals were assessed by applying the contamination factor (CF), enrichment factor (EF), geoaccumulation index (Igeo), pollution load index (PLI), and potential ecological risk index (RI). The mineralogical composition mainly comprised quartz, dolomites, calcite, and feldspars. The average concentrations of the detected heavy metals, in descending order, were Al > Fe > Mn > Cr > Pb > Cu > Zn > Ni > Co > Cd. A non-significant or negative relationship between the heavy metal concentration in the samples and their textural grain size characteristics was observed. The coastal surface sediment samples of the Suez Gulf contained lower concentrations of heavy metals than those published for other regions in the world with petroleum activities, except for Al, Mn, and Cr. The results for the CF, EF, and Igeo showed that Cd and Pb have severe enrichment in surface sediment and are derived from anthropogenic sources, while Al, Mn, Fe, Cr, Co, Ni, Cu, and Zn originate from natural sources. By comparison, the PLI and RI results indicate that the North Amer El Bahry and July Water Floud are considered polluted areas due to their petroleum activities. The continuous monitoring and assessment of pollutants in the Suez Gulf will aid in the protection of the environment and the sustainability of resources.

Checklist of the Red Sea Fishes with delineation of the Gulf of Suez, Gulf of Aqaba, endemism and Lessepsian migrants

Zootaxa ◽  
2018 ◽  
Vol 4509 (1) ◽  
pp. 1 ◽  
Author(s):  
DANIEL GOLANI ◽  
RONALD FRICKE
Keyword(s):  
Red Sea ◽  
Endemic Species ◽  
Gulf Of Aqaba ◽  
Gulf Of Suez ◽  
Actual Number ◽  
Suez Gulf ◽  
Number Of Species ◽  
Main Basin ◽  
Lessepsian Migrants ◽  
Current List

The current checklist provides for each species of the Red Sea its records in the Gulf of Suez, Gulf of Aqaba, Red Sea main basin and its general distribution.This new checklist of Red Sea fishes enumerates 1207 species, representing 164 families. Of these, 797 species were recorded from the Gulf of Aqaba and 339 from the Gulf of Suez. The number of species from the Gulf of Suez is evidently lower than the actual number not including 27 Lessepsian (Red Sea) migrants to the Mediterranean that most likely occur in the Gulf. The current list includes 73 species that were newly described for science since the last checklist of 2010. The most specious Osteichthyes families are: Gobiidae (134 species), Labridae (66), Apogonidae (59), Serranidae (including Anthiadinae) (44), Blenniidae (42), Carangidae (38), Muraenidae (36), Pomacentridae (35), Syngnathidae (34), Scorpaenidae (24) and Lutjanidae (23). Among the families of Chondrichthyes, the most specious families are the Carcharhinidae (18 species) and Dasyatidae (11). The total number of endemic species in the Red Sea is 174 species, of these, 34 species are endemic to the Gulf of Aqaba and 8 to the Gulf of Suez. 

Organic matters and lipid biomarkers in surface sediments from the northern South China Sea: Origins and transport

2014 ◽  
Vol 25 (1) ◽  
pp. 189-196 ◽  
Author(s):  
Weihai Xu ◽  
Wen Yan ◽  
Zhong Chen ◽  
Han Chen ◽  
Weixia Huang ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
Surface Sediments ◽  
Northern South China Sea ◽  
Lipid Biomarkers ◽  
Organic Matters ◽  
China Sea

Contents and Distributions of Heavy Metals in the Surface Sediments from Northern Beibu Gulf

2012 ◽  
Vol 610-613 ◽  
pp. 1194-1198
Author(s):  
Yue Han Li ◽  
Ai Rong Zheng ◽  
Zhi Kai Ma
Keyword(s):  
Heavy Metals ◽  
Atomic Absorption ◽  
Coastal Area ◽  
Surface Sediments ◽  
Depositional Environments ◽  
Atomic Absorption Spectrophotometer ◽  
Beibu Gulf ◽  
Offshore Area ◽  
Organic Matters ◽  
Terrestrial Inputs

Contents and distributions of heavy metals in surface sediments from the northern Beibu Gulf were analyzed using atomic absorption spectrophotometer. The results showed that the contents of Cu, Pb, Zn, Cr and Cd were 14.22～26.68, 31.85～54.59, 60.19～90.93, 29.95～67.95 and 0.030～0.130 µg•g–1, respectively, and average were 18.21, 38.88, 78.00, 48.46 and 0.09µg•g–1. The reducing environments in northern Beibu Gulf were attributed to organic matters and sulfide. The distributions of heavy metals showed the trend of higher along the coastal area and lower in the offshore area, generally controlled by terrestrial inputs, as well as hydrological conditions, depositional environments and so on.

II.—Occurrence of Miocene Rocks in Eastern Sinai

1904 ◽  
Vol 1 (6) ◽  
pp. 250-252
Author(s):  
W. F. Humem
Keyword(s):  
Middle Miocene ◽  
Eastern Desert ◽  
Lower Portion ◽  
Gulf Of Suez ◽  
Vienna Basin ◽  
Suez Gulf ◽  
Close Resemblance ◽  
Western Border ◽  
The Mediterranean ◽  
The Rich

The study of Egyptian geology during the last few years has thrown a flood of light on the former extension of the Mediterranean southward in Miocene times. Th. Fuchs, in examining the rich collections from the Cairo-Suez desert and the oasis of Siwah, recognized that the Miocene strata had a close resemblance to those of the Vienna Basin, and corresponded to the Grunder Beds at the base of the second Mediterranean stage, or the lower portion of the Middle Miocene. Later L. H. Mitchell, when studying the neighbourhood of Ras Jemsa and Jebel Zeit in 1887, obtained a number of large oysters, which Meyer-Eyinar recognized as Ostrea crassissima and Ostrea giganlea, and which were regarded as proving the existence of strata of Upper Miocene age along the western border of the Suez Gulf. From these results Blanckenhorn concluded that the Gulf of Suez must have been a Mediterranean bay in Miocene times, and further noted (Zeitsch. Deutsch. Geol. Gesell., Band liii, 1901, p. 79) that characteristic Miocene Pectens, viz. Pecten Sub-Malvinœ, occurred in the collection made by Barron at Abu Sha'ar. He further formed the opinion that all the marine Miocene strata in Egypt were of the age assigned to them by Fuchs (see also Barron & Hume, “Miocene Rocks in Eastern Desert,” Memoir of Egypt. Geol. Surv., 1902, pp. 159–165).

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