Beach sand ripples can be fingerprints for ancient weather conditions

Beach sand ripples can be fingerprints for ancient weather conditions


Photograph: © SAF – Coastal Care

Excerpts;

Experiments show shifting ripple patterns can signal times of environmental flux.

When a coastal tide rolls out, it can reveal beautiful ripples in the temporarily exposed sand. These same undulating patterns can also be seen in ancient, petrified seabeds that have been exposed in various parts of the world and preserved for millions or even billions of years…

Read Full Article; MIT News (09-27-2018)

What the Sands Tell Us: a Look Back at Southeastern US Beaches; By Orrin H. Pilkey & William J. Neal (05-01-2015)
All beaches contain a variety of minerals, unique “suites”, which are like fingerprints in the sand—fingerprints that are clues as to where the sand came from…

Sand Color Palette
Most beach sand color ranges from pale cream to golden to caramel, but in select places around the world, sand can be red, pink, orange, chocolate, gold, purple, green, or black…

The Colors Of Beach Sand; By Gary Griggs

Lessons From The Sand ; By Charles O. Pilkey and Orrin H. Pilkey (©-2016)
Featuring more than forty fun hands-on activities for families with children, “Lessons from the Sand” reveals the science behind the amazing natural wonders found on beaches and the activities explain how beaches work — providing the key to protecting them for future generations. A book by Charles O. Pilkey and Orrin H. Pilkey…

A microscopic look at why the world is running out of sand; Video, Verge Science (09-04-2018)

Sand, Rarer Than One Thinks: A UNEP report (GEA-March 2014)
Despite the colossal quantities of sand and gravel being used, our increasing dependence on them and the significant impact that their extraction has on the environment, this issue has been mostly ignored by policy makers and remains largely unknown by the general public.
In March 2014 The United Nations released its first Report about sand mining. “Sand Wars” film documentary by Denis Delestrac – first broadcasted on the european Arte Channel, May 28th, 2013, where it became the highest rated documentary for 2013 – expressly inspired the United Nations Environment Programme (UNEP) to publish this 2014-Global Environmental Alert.

Coastal Care

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