<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>10</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Saitis, G.</style></author><author><style face="normal" font="default" size="100%">Polidorou, M.</style></author><author><style face="normal" font="default" size="100%">Evelpidou, N.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Beachrock formation mechanism through minerochemical analysis and cement characteristics. Case study W. Akrotiri Peninsula, Cyprus</style></title><secondary-title><style face="normal" font="default" size="100%">RCG2019 “Geomorphology of Climatically and Tectonically Sensitive Areas”</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2019</style></year></dates><pub-location><style face="normal" font="default" size="100%">Athens - Greece</style></pub-location><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;div&gt;Beachrocks are hard coastal sedimentary formations consisted from various beach&amp;nbsp;sediments, coastal fauna residues and anthropogenic articles. Beachrocks are rapidly&amp;nbsp;cemented through precipitation of carbonate cements typically consisted of High-Magnesian&amp;nbsp;Calcite (HMC), which commonly precipitates in shallow marine environments, (&amp;gt;4 mol %&amp;nbsp;CaCO&lt;sub&gt;3&lt;/sub&gt; or 1.2 wt. %) or aragonite (Ar). However, debate still exists concerning the accurate&amp;nbsp;depositional environment of beachrocks and data for the mechanism of their formation are&amp;nbsp;considered necessary. This study aims to contribute to the understanding of the beachrock&lt;/div&gt;
&lt;div&gt;formation, using mineralogical and geochemical methods, analyzing the cement and the&amp;nbsp;consolidated sediments. Bulk samples were collected from three consecutive beaches&amp;nbsp;located at the West part of Akrotiri Peninsula (Cyprus island). The samples were examined&lt;/div&gt;
&lt;div&gt;under polarizing microscope for the determination of the cement (HMC as micritic and sparitic&amp;nbsp;crystals), its characteristics (isopachous bladed coating, formation of meniscus etc) and the&amp;nbsp;participation of well-preserved fossil fragments. The mineralogical analysis, with the use of&amp;nbsp;XRD analyzer, indicated a variety of minerals which consisting the beachrock (quartz,&amp;nbsp;carbonates, plagioclase, olivine, biotite, zircon etc). Using SEM-EDS it was possible to&amp;nbsp;accurately determine the cement composition and to observe its crystal characteristics. The&amp;nbsp;cement agent was mainly consisted by High-Magnesian Calcite (HMC) of different crystal&lt;/div&gt;
&lt;div&gt;sizes and matrix material was present as secondary pores filling. The three studied&amp;nbsp;beachrocks at the west of Akrotiri peninsula, were formed in the middle-low intertidal zone.&amp;nbsp;Evidence of continuous uplift of the beachrock is observed both from geomorphological&lt;/div&gt;
&lt;div&gt;analysis and through its infrastructure. The beachrocks were highly affected by the nearby&amp;nbsp;Kouris river, which supplied the material derived from the inner Cyprus areas rich in Mg&lt;sup&gt;2+&amp;nbsp;&lt;/sup&gt;rocks (eg. ophiolites) and Ca&lt;sup&gt;2+&lt;/sup&gt; (eg. limestones, marbles).&lt;/div&gt;</style></abstract></record></records></xml>