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Journals / Journal of the Black Sea/Mediterranean Environment / 2004 / Cilt: 10 - Sayı: 1

Günaybatı Karadeniz şelf alanı üzerinde yeni sığ sismik veriler;son deniz seviyesi değişimleri

New shallow seismic data from the southwestren Black Sea shelf;implications for recent sea-level fluctuations

Bedri ALPAR
Valeri GAINANOV
Pages
5–20
Publication Date
2022-10-19
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The lower unit consists of two different formations; locally folded-faulted acoustically reflective strata and stacked prograded delta successions The latter is divided into at least 4 distinct sub-units in a form of stacked delta successions deposited on the transgressed shelves of the Black Sea, which carry the effects of many minor short-lived sea-level variations.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Shallow seismic profiles are used to image the stratigraphic setting in the southwestern Black Sea.
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Key Findings & Data:This marked surface extends ubiquitously all over the shelf, -100 to -110 m below the present sea level, and indicating the lowstand of sea level before the latest rise in the Black Sea (10-9 ka BP).
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Conclusion & Impact:The lower unit consists of two different formations; locally folded-faulted acoustically reflective strata and stacked prograded delta successions The latter is divided into at least 4 distinct sub-units in a form of stacked delta successions deposited on the transgressed shelves of the Black Sea, which carry the effects of many minor short-lived sea-level variations.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Shallow seismic profiles are used to image the stratigraphic setting in the southwestern Black Sea. Two unconformable main seismic units were detected in the sediments, which carry the effects of a major sea-level fall. The upper unit shows transgressive systems track deposits on an erosional unconformity. This marked surface extends ubiquitously all over the shelf, -100 to -110 m below the present sea level, and indicating the lowstand of sea level before the latest rise in the Black Sea (10-9 ka BP). The lower unit consists of two different formations; locally folded-faulted acoustically reflective strata and stacked prograded delta successions The latter is divided into at least 4 distinct sub-units in a form of stacked delta successions deposited on the transgressed shelves of the Black Sea, which carry the effects of many minor short-lived sea-level variations.

Özet

Karadeniz kıyı oynamalarının çokça tartışıldığı bir ortamda, Trakya şelfi üzerinde toplanan sığ sismik veriler ile stratigrafik yapı araştırılmıştır. Esas amaç, mitoloji masalları yazmak değil, ancak çok disiplinli araştırmalara bilimsel ve modern veri işlem teknikleri kullanılarak işlenmiş yeni veriler sunmaktır. Bu veriler, Aksu ve arkadaşları tarafından öne sürülen ve tüm şelf alanını kapsayan depolanma sistemlerim desteklemektedir. Ek olarak, üst ve alt temel birimler içerisindeki kısa süreli deniz seviyesi değişimlerini gösteren alt sismik birimler detaylı bir şekilde ayırt edilmiştir. Elde edilen jeofizik sonuçlar, Marmara Bölgesinin değişik yerlerinde belirlenen düşey kabuk hareket hızlan üzerine inşa edilen varsayımsal fakat olası bir tektonik yükselme modeli de dikkate alınarak, Marmara Denizi ve İstanbul Boğazındaki örnek sismik birimler ile karşılaştırılmıştır.

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Cite This Article

ALPAR, B., GAINANOV, V. (2022). Günaybatı Karadeniz şelf alanı üzerinde yeni sığ sismik veriler;son deniz seviyesi değişimleri. Journal of the Black Sea/Mediterranean Environment, Cilt: 10 - Sayı: 1, 5–20. https://ajindex.com/articles/566548

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