MORPHODYNAMICS AND GEOLOGICAL LEGACY OF BERM SCARPS ALONG NON-TIDAL (UKRAINE) AND MICROTIDAL (THE BAHAMAS) COASTS
Journal Title: Вісник Одеського національного університету. Географічні та геологічні науки - Year 2014, Vol 19, Issue 2
Abstract
Berm scarps are erosional features characteristic of all coastal accumulation forms. Their profiles range from steep to overhanging (ψ>90) and evolve through slope adjustment and burial by swash and aeolian accretion. Examples from the mixed siliciclastic-bioclastic beaches of the non-tidal Black Sea coast of Ukraine and the microtidal oolitic-bioclastic carbonate islands of the Bahama Archipelago demonstrate a wide range of scarp morphologies. Truncations of berm strata and density lag at the scarp base accentuate their recognition in the field and in geophysical (georadar) records. Although ephemeral as surface features, berm scarps may act as nucleation sites for aeolian aggradation, thereby generating continuous coast-parallel dune ridges. Accumulation of organic debris promotes colonization of incipient foredunes by plants and provides chronological control of erosional events. Therefore, paleo-berm scarps serve as important geological indicators of past storm activity and aid in constraining sea-level position.
Authors and Affiliations
I. V. Buynevich, M. Savarese, S. V. Kadurin, E. P. Larchenkov, L. E. Park Boush, H. A. Curran, I. A. Beal
Keywords
Related Articles
- EP ID EP399924
- DOI -
- Views 376
- Downloads 0
SOIL NEOPLASMS – AS DIAGNOSTIC CRITERIA OF SOIL FORMATION PROCESSES IN THE BROWN EARTH-PODZOL LOAMY SOILS OF PRE-GORGANIAN PRE-CARPAТHIAN REGION
Problem Statement and Purpose. The soils of the Pre-Gorganian Pre-Carpathian Region with the eluvially illiual type of the profile were formed as a result of a complex combination of various elemental soil processes. The...
ASSESSMENT OF THE DANUBE RIVER INFLUENCE ON SOME HYDROLOGICAL CHARACTERISTICS OF THE NORTHWESTERN BLACK SEA IN 2004-2013.
Purpose. Many big rivers whose combined discharge totals to 265-267 km3 are flowing into the shallow northwestern part of the Black Sea (NWBS), which can not but tell upon the circulation of marine water masses in the ar...
SOME REGULARITIES OF SUSPENDED MATTER’S FIELDS FORMATION IN DANUBE MOUTH AREA
The processes of transformation and transport of suspended matter in the mouth area of the Danube is discussing. Data in situ as a result of long-term monitoring was using in a period of different hydrometeorological con...
PUBLICLY-GEOGRAPHICAL RESEARCHES OF TRANSPORT-LOGISTIC NETWORKS AND SYSTEMS
Among the issues of the day of economic and social development of countries an important place is occupied by the problems of forming of transport-logistic networks and systems, as effective and concerted work of a trans...
ETHNOGRAPHIC SYSTEMS OF BULGARIA: GENERALFEATURES
Problem Statement and Purpose. Autochthonous and allochthonous EGS significantly differ on urgent development problems and issues that they need to solve for the effective development of such systemic formations. For exa...