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Summary
DescriptionPt18-176 Strandsediment.jpg
English: Beach sediment (quartz sand on a beach including smaller particles of darker minerals) forming small braided rivers in the surf zone with dark minerals differentiated by their specific weight, Northern Algarve, Portugal. Sand is defined as particles with a diameter of between 0.074 and 4.75 millimeters.
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Sediments at a portuguese beach north of Sagres, heavy, manganese minerals differentiated by the water from lighter silicate minerals, forming little braided rivers. Size app. 0,5 metres width.