scholarly journals 20,000 or 40,000-year depositional sequences caused by glacio-eustatic sea-level fluctuation in the middle Pleistocene Jizodo Formation, Boso Peninsula, central Japan.

1997 ◽  
Vol 103 (8) ◽  
pp. 747-762 ◽  
Author(s):  
Takanobu Kamataki ◽  
Yasuo Kondo
Keyword(s):  
Sea Level ◽  
Middle Pleistocene ◽  
Level Fluctuation ◽  
Central Japan ◽  
Depositional Sequences ◽  
Boso Peninsula ◽  
Sea Level Fluctuation

Quaternary evolution and paleoclimatology of the coastal cave of Selinitsa (SW Peloponnese, Greece) based on geomorphological and geochemical data

2021 ◽  
Author(s):  
Isidoros Kampolis ◽  
Vasilios Skliros ◽  
Stavros Triantafyllidis
Keyword(s):  
Sea Level ◽  
Eastern Mediterranean ◽  
Eastern Coast ◽  
Middle Pleistocene ◽  
Interglacial Period ◽  
Level Fluctuation ◽  
Sea Level Changes ◽  
Last Interglacial ◽  
Sea Level Fluctuation ◽  
Mis 5E

<p>The present study examines the Quaternary evolution of the Selinitsa coastal cave in SW Peloponnese, in an attempt to provide new insights on the paleogeographical and paleoclimatological conditions of the Eastern Mediterranean Sea. The entrance of Selinitsa Cave is located +18 m above present sea level (a.p.s.l.) on the eastern coast of Messiniakos Gulf (SW Peloponnese), an area of constant uplift since Middle Pleistocene. Considering the phreatic origin of Selinitsa and the presence of sea level indicators at its entrance (biological and geomorphological markers such as tidal notches and <em>Lithophaga</em> borings), all together qualify the cave suitable for the study of former sea level changes and more particularly, those during the last interglacial period. The MIS 5e is considered the most suitable geological period for the estimation of future sea level rise due to the plethora of geological data at-or-near the coastal zone combined to sea-level fluctuation circles from Middle Pleistocene to-date. Previous results from Selinitsa Cave place the sea level of the latest phase of the last interglacial at +18 m a.p.s.l.</p><p>The Eastern Mediterranean is the least studied area relative to the Western Mediterranean, regarding sea level changes during Marine Isotope Stage 5e (MIS 5e). In order to reconstruct the paleogeography of the area and shed light on the climatic conditions of this period, our study involved geological mapping, field measurements and identification of geomorphological features (marine terraces, coastal caves and former sedimentary tidal environments). Additionally, 3D mapping of Selinitsa was conducted in order to precisely define its relative location in respect to the present sea level. Moreover, X-ray diffraction, optical microscopy, mineralogy and major and trace element geochemistry of speleothems and clastic sediments found in the inner part of Selinitsa were also employed and combined to the aforementioned geomorphological data.</p><p>The objective of the study is to provide a model for the development and the paleoclimatic conditions of the Selinitsa Cave during Late Pleistocene, how sea-level affected the aforementioned system, and finally provide an estimate of sea-level fluctuation over the last 125 ka.</p>

Sea level fluctuation and shoreline evolution on decadal time scale, Lithuanian Baltic Sea coast

2014 ◽  
Vol 70 ◽  
pp. 164-169 ◽  
Author(s):  
Darius Jarmalavičius ◽  
Donatas Pupienis ◽  
Gintautas Žilinskas
Keyword(s):  
Baltic Sea ◽  
Sea Level ◽  
Time Scale ◽  
Level Fluctuation ◽  
Decadal Time Scale ◽  
Shoreline Evolution ◽  
Sea Level Fluctuation ◽  
Sea Coast

A Near-Uniform Basin-Wide Sea Level Fluctuation of the Mediterranean Sea

2007 ◽  
Vol 37 (2) ◽  
pp. 338-358 ◽  
Author(s):  
Ichiro Fukumori ◽  
Dimitris Menemenlis ◽  
Tong Lee
Keyword(s):  
Atlantic Ocean ◽  
Mediterranean Sea ◽  
Sea Level ◽  
Ocean Circulation ◽  
Large Scale ◽  
Circulation Model ◽  
Level Fluctuation ◽  
Strait Of Gibraltar ◽  
Sea Level Fluctuation ◽  
The Mediterranean

Abstract A new basin-wide oscillation of the Mediterranean Sea is identified and analyzed using sea level observations from the Ocean Topography Experiment (TOPEX)/Poseidon satellite altimeter and a numerical ocean circulation model. More than 50% of the large-scale, nontidal, and non-pressure-driven variance of sea level can be attributed to this oscillation, which is nearly uniform in phase and amplitude across the entire basin. The oscillation has periods ranging from 10 days to several years and has a magnitude as large as 10 cm. The model suggests that the fluctuations are driven by winds at the Strait of Gibraltar and its neighboring region, including the Alboran Sea and a part of the Atlantic Ocean immediately to the west of the strait. Winds in this region force a net mass flux through the Strait of Gibraltar to which the Mediterranean Sea adjusts almost uniformly across its entire basin with depth-independent pressure perturbations. The wind-driven response can be explained in part by wind setup; a near-stationary balance is established between the along-strait wind in this forcing region and the sea level difference between the Mediterranean Sea and the Atlantic Ocean. The amplitude of this basin-wide wind-driven sea level fluctuation is inversely proportional to the setup region’s depth but is insensitive to its width including that of Gibraltar Strait. The wind-driven fluctuation is coherent with atmospheric pressure over the basin and contributes to the apparent deviation of the Mediterranean Sea from an inverse barometer response.

Tertiary sea-level fluctuation in South Carolina

1968 ◽  
Vol 5 (1) ◽  
pp. 105-126 ◽  
Author(s):  
D.J. Colquhoun ◽  
H.S. Johnson
Keyword(s):  
South Carolina ◽  
Sea Level ◽  
Level Fluctuation ◽  
Sea Level Fluctuation

Development of the Volga Delta in Response to Caspian Sea-Level Fluctuation during Last 100 Years

2004 ◽  
Vol 202 ◽  
pp. 401-414 ◽  
Author(s):  
C. X. Li ◽  
V. Ivanov ◽  
D. D. Fan ◽  
V. Korotaev ◽  
S. Y. Yang ◽  
...  
Keyword(s):  
Sea Level ◽  
Caspian Sea ◽  
Level Fluctuation ◽  
Volga Delta ◽  
Sea Level Fluctuation

scholarly journals Holocene Evolution of the Outer Lake of Hwajinpo Lagoon On the Eastern Coast of Korea; Environmental Changes with Holocene Sea-Level Fluctuation of the East Sea (Sea of Japan)

Radiocarbon ◽  
2004 ◽  
Vol 46 (2) ◽  
pp. 797-808 ◽  
Author(s):  
Jong-Gwon Yum ◽  
Kang-Min Yu ◽  
Keiji Takemura ◽  
Toshiro Naruse ◽  
Akihisa Kitamura ◽  
...  
Keyword(s):  
Sea Level ◽  
Environmental Changes ◽  
River System ◽  
Eastern Coast ◽  
Estuarine System ◽  
Level Fluctuation ◽  
Radiocarbon Dates ◽  
Sedimentary Environments ◽  
Sea Level Fluctuation ◽  
Low Sulfur Content

The evolution of the outer lake of Hwajinpo Lagoon in Korea has been reconstructed using environmental proxies (lithologic, geochemical, and fossil data) with a chronology established using 7 accelerator mass spectrometry (AMS) radiocarbon dates. Grain size, water content, and X-ray analyses from the core of outer coastal lakes (HJ99) were used to reconstruct sedimentary environments by using total organic carbon, C/N, S, and C/S chemical proxies. Assemblages of mollusc remains also provided paleoenvironmental information. The environmental changes of the outer lake of Hwajinpo Lagoon can be divided into 6 depositional phases. The basin of the Hwajinpo was exposed and underwent a weathering process before the Holocene period. The muddy sand layer on the weathered bedrock indicated an estuarine system about 6000 BP. The laminated layer implies that the lagoonal system was anoxic between about 5500–2800 BP. The marl layer implies a relatively oxic lagoonal condition with mollusc presence about 2500 B P. The layer of very low sulfur content indicates a freshwater lake system isolated by a sand barrier about 1700 BP. Beginning about 1000 B P, the river system deposits progress progradation on the marl layer. Two erosional landforms could be related with a high standing sea level span during Holocene. These high-stands are dated at 5700 BP and 2200 BP and are supposed to have formed erosional landforms of about 1.6 amsl and 0.8 amsl, respectively. Environmental changes of the outer lake of Hwajinpo Lagoon are considered due mainly to the lake- and sea-level fluctuation during Holocene.

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