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Beach ridge systems - archives for Holocene coastal events ?

Beach ridge systems - archives for Holocene coastal events ?
Beach ridge ; Climatic change ; Coastal environment ; Cyclone ; Geoarchive ; Holocene ; Palaeo-environment ; Sea level ; Spatial distribution ; Storm ; Tsunami ; World
The aim of this review is not to discuss the multiple genetic aspects of beach ridge formation but to document their worldwide distribution and their potential as archives for understanding environmental change such as sea-level variations, sediment
supply and palaeo-storm activity during the postglacial coastal evolution. Beach ridge systems, however, belong to the most promising geo-archives for the study of climate change and sea-level variations over the Holocene, as well as for deciphering event
histories. This paper presents examples of some studies in this field, in relation to a global overview of beach ridge systems and their morphological characteristics.

Heightened North Pacific storminess during synchronous Late Holocene erosion of northwest Alaska beach ridges

Heightened North Pacific storminess during synchronous Late Holocene erosion of northwest Alaska beach ridges
In this paper, the chronostratigraphy and correlations between seven beach ridge complexes in northwestern Alaska are described and assessed as paleoclimatic proxy records.

Breaching of a beach ridge and the formation of beach cusps

Breaching of a beach ridge and the formation of beach cusps

AMS radiocarbon dating of Lake Michigan beach-ridge and dune development

AMS radiocarbon dating of Lake Michigan beach-ridge and dune development
Strandplains of shore-parallel beach ridges bordering the Great Lakes are valuable for reconstructing histories of climate-related lake-level fluctuations. The resolution and imprecision of radiocarbon chronologies can be improved with AMS C 14
dates of roots and rhizomes of plant species associated with the formation and growth of the sand -dune caps of beach ridges. An AMS radiocarbon chronology of beach-ridge formation in northern Lake Michigan shows that information about variation
in the frequency of ridge formation is important for paleoclimatic interpretation.

The origin of foredunes and sandy beach ridges

The origin of foredunes and sandy beach ridges
on the beach face| a beach ridge is a more persistent wave-built ridge formed at or above high spring tide on a prograding sandy coast| a foredune is a ridge of aeolian sand running parallel to the coastline. (L'A.).
Studies of prograded sectors of sandy coastline in Victoria have shown that some are initiated upon wave-built beach berms colonised by dune vegetation that begins to trap wind blown sand| others develop where backshore terraces built under dune
vegetation spreading from pre-existing dunes are trimmed back by storm wave erosion, forming a dune cliff capped by spillover sand which becomes a foredune as further aeolian accretion proceeds. A berm is defined as an impersistant wave-built ridge or terrace

Location and height of intertidal bars on macrotidal ridge and runnel beaches

Location and height of intertidal bars on macrotidal ridge and runnel beaches
profile in the seaward direction. The morphological characteristics of ridge and runnel beaches from 3 locations (Lincolnshire, Blackpool beach, England, and Leffrinckoucke beach, north France) with varying wave, tidal and geomorphic settings
The principal aim of this paper is to investigate whether the ridges are preferentially located on the intertidal profile where the water level is stationary for the longest time and whether the height of the ridges increases across the intertidal
. It is suggested that the ridges are the result of a combination of swash and surf zone processes acting across the intertidal zone.

Lake Michigan beach-ridge and dune development, lake level, and variability in regional water balance

Lake Michigan beach-ridge and dune development, lake level, and variability in regional water balance
This paper reports the results of AMS radiocarbon dates of plant macrofossils associated with dune formation and growth, determines the historical relationships among beach-ridge formation, lake-level fluctuation, and regional climatic variation
, and finally provides an interpretation of lake-level and regional climate history based on dune morphology and the radiocarbon chronology of ridge formation.

Beach ridges - definitions and significance

Beach ridges - definitions and significance
Numerous AA. utilized the term beach ridge for active and relict, usually wave-built supratidal and /or intertidal forms. The term was applied also to submerged, landward-shifting, eventually stranded bars. A consistent redefinition of the term
is highly desirable. Beach ridges should include all relict strandplain ridges, whether dominated by wave/swash-built or by eolian lithosomes. All active ridge-like shore features, regardless of dimensions, morphology, and origin are excluded. This paper

Beach ridges from the Varanger Peninsula (Arctic Norwegian coast) : characteristics and significance

Beach ridges from the Varanger Peninsula (Arctic Norwegian coast) : characteristics and significance
Beach ridge ; Climatic variation ; Coastal dynamics ; Coastal environment ; Coastal geomorphology ; Cold area ; Glacial features ; Norway ; Norwegian Sea ; Sediment transport ; Vertical movement
Some bays having the same isostatic rebound and dynamic conditions have been studied to test if the number of beach ridges in each locality is significant to prove climatic changes, storminess, and rates of sediment accumulation, or if the number
of beach ridges in each bay is only dependent on their intrinsic characteristics and self organization. Because the number of ridges varies not only from bay to bay, but even within the same bay, it has to be accounted for by contrasting internal and local
condition) are responsible for beach ridge development.

Coastal change and beach ridges along the northwest coast of Peru : image and GIS analysis of the Chira, Piura, and Colán Beach-Ridge plains

Coastal change and beach ridges along the northwest coast of Peru : image and GIS analysis of the Chira, Piura, and Colán Beach-Ridge plains

Ice-collapse induced waves and graded gravel ridges on a lake beach

Ice-collapse induced waves and graded gravel ridges on a lake beach

Beach ridge geomorphology at Cape Grinnell, northern Greenland : a less icy Arctic in the Mid-Holocene

Beach ridge geomorphology at Cape Grinnell, northern Greenland : a less icy Arctic in the Mid-Holocene
Archeological site ; Arctic Region ; Beach ridge ; C 14 dating ; Chronostratigraphy ; Coastal environment ; Coastal geomorphology ; Fauna ; Greenland ; Holocene ; Palaeo-environment ; Palaeoclimate ; Paraglacial ; Storm
The chronology of uplifted beach ridges is constrained by 10 geological 14C ages on shell and sea mammal bones and 11 upper limiting ages from archaeological sites that span the last 3,000 years. Beach ridges formed under the influence of open water
extensive fan deltas. Active solifluction lobes and colluvia cover beach ridge deposits that are between 9 and 7 ka old.

Occurrence and properties of soils on sandy beach ridges in the Kelantan-Terengganu Plains, Peninsular Malaysia

Occurrence and properties of soils on sandy beach ridges in the Kelantan-Terengganu Plains, Peninsular Malaysia
This study was conducted along the Kelantan–Terengganu Coastal Plains to explain the occurrence of sandy beach ridges and to determine the physico-chemical properties of the soils formed on them. In between these ridges occurs a slight depression
on the older ridges contain spodic horizon. Drainage and the depth below which this spodic horizon occurs are the deciding factors for determining soil type (series). Sandy nature of the soils on beach ridges, extreme leaching, low cation exchange capacity
, usually occupied by soils under submerged condition. The soils on the ridges are subjected to the processes of soil formation, mainly podzolization. There is no horizon differentiation in the soils on the ridge nearest to the shoreline. However, soils

Rasgos morfologicos evolutivos del sector costanero comprendido entre Bahia Verde e Isla Gaviota, provincia de Buenos Aires

An evolutionary morphological analysis is presented. The shoreline migration to the east during the Holocene is reflected in the northern section by beach ridges. In the southern section the migration of the shoreline is evidenced by beach ridge
or gravels or gravel mixed with abundant sands, which form old beach barriers. The 14C ages for the rised different positions relatively of the sea-level oscillate between 7000 and 400 years B.P.

Short-term intertidal bar mobility on a ridge-and-runnel beach, Merlimont, northern France

Short-term intertidal bar mobility on a ridge-and-runnel beach, Merlimont, northern France
Digital elevation models and topography profiles of a beach with intertidal bar and through (ridge-and-runnel) morphology in Merlimont, near Somme estuary, were analysed in order to assess patterns of cross-shore and longshore intertidal bar
mobility. The beach exhibited a pronounced dual bar-trough system that showed cross-shore stationarity. The bars and throughs were, however, characterized by significant longshore advection of sand under the influence of suspension by waves and transport

Chevron ridges and runup deposits in the Bahamas from storms late in oxygen-isotope substage 5e

Chevron ridges and runup deposits in the Bahamas from storms late in oxygen-isotope substage 5e
On low-lying areas of the Bahamas, extensive V-shaped storm-beach ridges (chevrons in this paper) were emplaced by similar, high-energy events. The origin of these storm ridges, associated run-up features, and boulder deposits, plus the implications

Dynamics of intertidal drainage channels on a multi-barred macrotidal beach

Dynamics of intertidal drainage channels on a multi-barred macrotidal beach
Atlantic Ocean ; Beach ; Belgium ; Channel ; Coastal dynamics ; Coastal environment ; Drainage ; Intertidal zone ; North Sea ; Sand bar ; Tide ; Wave
The intertidal drainage channels on a macrotidal bar-trough (ridge-and-runnel) beach, the Leffrinckouke beach in the southern North Sea, were monitored during a 17-day survey. This beach is characterized by 2 intertidal drainage channel types : type
1, dominantly longshore systems essentially limited to the wide intertidal zone; smaller and ephemeral type 2, dominantly cross-shore systems incising bars during spring tides. Channel mobility and impact on beach morphology are expected to increase

Soil genesis on beach ridges of pluvial lake Mojave : implications for Holocene lacustrine and eolian events in the Mojave Desert, Southern California

Soil genesis on beach ridges of pluvial lake Mojave : implications for Holocene lacustrine and eolian events in the Mojave Desert, Southern California
processes have strongly influenced soil development on beach ridges.

Late-Holocene formation of Lake Michigan beach ridges correlated with a 70-yr oscillation in global climate

Late-Holocene formation of Lake Michigan beach ridges correlated with a 70-yr oscillation in global climate
A radiocarbon-dated series of 75 beach ridges, formed at regular intervals averaging 72 yr over the past 5400 yr, provides further support for the existence of a 70-yr oscilllation in Northern Hemisphere climate, postulated recently from instrument

Beach ridge ranges and the Holocene sea-level fluctuations on alluvial coastal plains, Northeast Japan

Beach ridge ranges and the Holocene sea-level fluctuations on alluvial coastal plains, Northeast Japan
. Formative periods of beach ridge ranges were estimated depending on the C 14 data of five coastal plains: Sendai, Akita, Ishinomaki, Tanabu and Aomori coastal plains.

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