干旱区生态环境知识资源中心(Arid): Microfacies, biofacies, and depositional environments of the Bajocian-Bathonian Middle Dhruma carbonates, central Saudi Arabia

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DOI	10.1007/s00531-019-01778-8
	Microfacies, biofacies, and depositional environments of the Bajocian-Bathonian Middle Dhruma carbonates, central Saudi Arabia
	Ismanto, Aviandy W.1; Chan, Septriandi A.1; Babalola, Lamidi O.2; Kaminski, Michael A.1; Al-Ramadan, Khalid A.1; Abdullatif, Osman M.1
通讯作者	Babalola, Lamidi O.
来源期刊	INTERNATIONAL JOURNAL OF EARTH SCIENCES
ISSN	1437-3254
EISSN	1437-3262
出版年	2019
卷号	108 期号:8 页码:2577-2601
英文摘要	Three cliff-forming outcrops of the Dhruma Formation representing the carbonate platform in the Hafirat Nisha district west of Riyadh, Saudi Arabia, were investigated to identify and understand the microfacies variability in a carbonate ramp setting. An integrated approach including detailed field investigations, petrographic, biofacies, and micropaleontological analyses was used to construct a model of the depositional environments of the investigated outcrop sections. The depositional model indicates that the identified lithofacies were predominantly deposited in outer ramp, middle ramp, inner ramp, and lagoonal settings. The presence of the benthic foraminifera Redmondoides lugeoni and Nautiloculina oolithica and the trace fossil Thalassinoides indicates deposition in shallow-water environments and the prevalence of warm climatic conditions during the Middle Jurassic. The occurrences of calcareous and agglutinated benthic foraminiferal species Pseudomarssonella maxima, Siphovalvulina variabilis, Timidonella sarda, N. oolithica, R. lugeoni, Praekurnubia crusei, Paleopfenderina salernitana, Haurania deserta, Siphovalvulina spp., Lenticulina sp., Textulariopsis sp., and Amijella amiji imply that our studied sections are situated within the Dm-2 to Dm-5 biozones (Bajocian to early Bathonian). This is also supported by the calcareous nannofossil assemblages that show a Bajocian to early Bathonian age. The depositional sequences indicate a shift in the depositional environment from low-energy lagoonal with intermittent shoal complexes in the D2 and D3 Units to predominantly shoal complex and open-marine settings in the D4 Unit, suggesting a seaward shift towards the top of the D4 Unit. The interpreted depositional settings are similar to those previously documented in the subsurface equivalent, Faridah reservoir. This indicates that the investigated D2-D4 Units outcrops are excellent analogues of the subsurface reservoir.
英文关键词	Middle Jurassic Dhruma formation Saudi Arabia Microfacies Paleoenvironment
类型	Article
语种	英语
国家	Saudi Arabia
收录类别	SCI-E
WOS记录号	WOS:000493756400001
WOS关键词	SEQUENCE STRATIGRAPHY ; RAMP SUCCESSION ; FORAMINIFERA ; PLATFORM ; BIOSTRATIGRAPHY ; EVOLUTION ; OOIDS ; MODEL
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
EI主题词	2019-10-31
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310390
作者单位	1.King Fahd Univ Petr & Minerals, Coll Petr Engn & Geosci, Geosci Dept, Dhahran 31261, Saudi Arabia; 2.King Fahd Univ Petr & Minerals, Coll Petr Engn & Geosci, Ctr Integrat Petr Res, Dhahran 31261, Saudi Arabia
推荐引用方式 GB/T 7714	Ismanto, Aviandy W.,Chan, Septriandi A.,Babalola, Lamidi O.,et al. Microfacies, biofacies, and depositional environments of the Bajocian-Bathonian Middle Dhruma carbonates, central Saudi Arabia[J],2019,108(8):2577-2601.
APA	Ismanto, Aviandy W.,Chan, Septriandi A.,Babalola, Lamidi O.,Kaminski, Michael A.,Al-Ramadan, Khalid A.,&Abdullatif, Osman M..(2019).Microfacies, biofacies, and depositional environments of the Bajocian-Bathonian Middle Dhruma carbonates, central Saudi Arabia.INTERNATIONAL JOURNAL OF EARTH SCIENCES,108(8),2577-2601.
MLA	Ismanto, Aviandy W.,et al."Microfacies, biofacies, and depositional environments of the Bajocian-Bathonian Middle Dhruma carbonates, central Saudi Arabia".INTERNATIONAL JOURNAL OF EARTH SCIENCES 108.8(2019):2577-2601.