Petrogenetic evolution of basaltic lavas from Balhaf–Bir Ali Plio-Quaternary volcanic field, Arabian Sea, Republic of Yemen

Heikal, Mohamed Th. S.; Lebda, El-Metwally M.; Orihashi, Yuji; Habtoor, Abdalmenam

doi:10.1007/s12517-012-0726-z

Cited by 9 publications

(9 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They are the result of the mingling of magma with unconsolidated sediments, which occurs during non-explosive interactions at the margins of intrusive/extrusive igneous bodies. The formation of peperites in the study area is consistent with the Early Miocene Bigadic basin (Western Turkey) mentioned by Erkül et al (2005), and Balhaf-Bir Ali Plio-Quaternary volcanic field (Arabian Sea, Republic of Yemen) mentioned by Heikal et al (2012).…”

Section: Discussion and Interpretation Of Peperitessupporting

confidence: 90%

Characteristics of lava-sediments interactions during emplacement of mid-Tertiary volcanism, Northeastern Desert, Egypt: field geology and geochemistry approach

Desoky

Shahin

2020

Arab J Geosci

View full text Add to dashboard Cite

Mid-Tertiary volcanism in the Northeastern Desert of Egypt was associated with the African-Arabian plate rifting and opening of the Red Sea, a period of 30 Ma (Late Oligocene). The resulted lava flows, predominately basaltic sheets, have mingled with the underlying sediments, forming peperite along the contact between them. Field geology, petrography, and geochemistry methods have been used to identify the behavior of the lava-sediment interaction which produced peperite. Two types of peperite have been recognized, fluidal at Naqb Ghul and El-Yahmum areas, and blocky at El-Qattamiya area. Sometimes, the two types are represented together at the El-Qattamiya area. Fluidal peperite is characterized by globular and equant juvenile clasts and with irregular or ragged margins suggesting low viscosity, ductile fragmentation, and sediment fluidization. Blocky peperites are characterized by angular, polyhedral, platy juvenile clasts and a jigsaw-crack texture, resulted from quenching of magma in a brittle regime. The coexistence of fluidal and blocky clasts together reflects progressive disintegration and suggests decreasing temperature and increasing viscosity during fragmentation. The presence of sediments in vesicles and in fractures in the peperite zone indicates a non-explosive phase of interaction. Geochemical data suggests that different composition across the magma/ sediment boundary is a result of silicification and sediment fluidization.

show abstract

Section: Discussion and Interpretation Of Peperitessupporting

confidence: 90%

Characteristics of lava-sediments interactions during emplacement of mid-Tertiary volcanism, Northeastern Desert, Egypt: field geology and geochemistry approach

Desoky

Shahin

2020

Arab J Geosci

View full text Add to dashboard Cite

show abstract

“…Pronounced macroscopic vesicles are well notified (Fig. 2(c-d)) Origin of vesicles was discussed before [5][6].…”

Section: Geologic Set Up and Petrographic Signaturementioning

confidence: 68%

Positron Annihilation Spectroscopy of Basaltic Rocks from Plio-Qaternary Volcanics, Sana’a-Amran Volcanic Field, Yemen

Mahmoud

Heikal

2021

Adv. Mater. Lett.

View full text Add to dashboard Cite

show abstract

“…The following sections present a review of geochemical and isotope data of the Oligocene-Recent volcanic rocks from Yemen [2,3,[6][7][8][9][10][11][12][13][14][15][16][17][18][19], along with their age equiva-lent from Saudi Arabia and Ethiopia [20][21][22][23].…”

Section: Geochemistry Of the Yemen Flood Volcanismmentioning

confidence: 99%

Continental Flood Basalts and Rifting: Geochemistry of Cenozoic Yemen Volcanic Province

Mattash¹,

Pinarelli²,

Vaselli³

et al. 2013

IJG

View full text Add to dashboard Cite

Rift formation is a crucial topic in global tectonics. The Yemen rift-related area is one of the most important provinces, being connected to the rifting processes of the Gulf of Aden, the Red Sea and Afar Triangle. In this paper, a review of the Yemen volcanic province and its relations with the Red Sea rifting are presented. Tertiary continental extension in Yemen resulted in the extrusion of large volumes of effusive rocks. This magmatism is divided in the Oligo-Miocene Yemen Trap Series (YTS) separated by an unconformity from the Miocene-Recent Yemen Volcanic Series (YVS). Magmas of the YTS were erupted during the synrift phase and correlate with the first stage of sea-floor spreading of the Red Sea and the Gulf of Aden (30-15 Ma), whereas the magmas of the YVS were emplaced during the post rift phase (10-0 Ma). A continental within plate character is recognized for both the YTS and YVS basalts. The YTS volcanic rocks are contemporaneous with, and geochemically similar to, the Ethiopian rift volcanism, just as the volcanic fields of the YVS are geochemically alike to most of the Saudi Arabian volcanics. YTS and YVS have analogous SiO 2 ranges, but YVS tend to have, on average, higher alkalis and MgO contents than YTS. Fractional crystallization processes dominate geochemical variations of both series. Primitive magmas (MgO > 7.0%) are enriched in incompatible elements and LREEs with respect to primitive mantle, but YVS are more enriched than YTS. To first order, the different geochemical patterns agree with different degrees of partial melting of an astenospheric mantle source: 25%-30% of partial melting for YTS and 10%-3% for YVS. Secondly, the higher degree of enrichment in incompatible elements of YVS reflects also greater contribution of a lithospheric mantle component in their source region.

show abstract

Petrogenetic evolution of basaltic lavas from Balhaf–Bir Ali Plio-Quaternary volcanic field, Arabian Sea, Republic of Yemen

Cited by 9 publications

References 39 publications

Characteristics of lava-sediments interactions during emplacement of mid-Tertiary volcanism, Northeastern Desert, Egypt: field geology and geochemistry approach

Characteristics of lava-sediments interactions during emplacement of mid-Tertiary volcanism, Northeastern Desert, Egypt: field geology and geochemistry approach

Positron Annihilation Spectroscopy of Basaltic Rocks from Plio-Qaternary Volcanics, Sana’a-Amran Volcanic Field, Yemen

Continental Flood Basalts and Rifting: Geochemistry of Cenozoic Yemen Volcanic Province

Contact Info

Product

Resources

About