White Mountain EarthCache
-
Difficulty:
-
-
Terrain:
-
Size: 
(other)
Please note Use of geocaching.com services is subject to the terms and conditions
in our disclaimer.
You can park your car at N55 38.457 E9 44.299, from here you can easily walk via the Trailhead coordinate to the final coordinate.
Sie können ihr auto parken ab N55 38.457 E9 44.299, von hier aus können Sie ganz einfach via the Trailhead koordinaten nach den final Koordinaten gehen.
Related to the recent changes in the rules for earth caches and at the request of the reviewer, the questions are adapted.
Try to answer the questions to your best knowledge, Photos that prove you’re visit to the site are optional but much appreciated! |
The formation
On the eastern side of jutland (Danmark) there is a 'geological monument' known as Hvidbjerg.
The name Hvidbjerg stand for White Mountain. When you follow the path over the ridge you immediately see why!
On top of this mountain you have a beautiful view over the Vejle fjord.
The Hvidbjeg is the largest sand dune of the east coast. The dune is nearly 30 meter high and a preserved sand dune. This dune was formed during the Pleistocene and Holocene period.
The geological substrate consists of shifting sand. The coastel dune has developed over the past 5000 years.
The dunefield is situated in a temperate climate zone with frequent high energy wind events. Dune development was characterized by repeated periods of transgressive dune formation punctuated by periods of dune stabilization an soil formation.
Proxy-climate data suggest that periods of dunefield activity were initiated during wet/cool summers. Most likely these climatic situations were associated with a more frequent passage of cyclones across Denmark in the summer seasons (increased storminess) causing aeolian sand movement and dune formation. The continued removal of vegetation in Jutland between 4000 BC and AD 1850 allowed the aeolian sand, when first activated, to move more and more easily across the coastal plains; the final phase of aeolian sand movement between AD 1550-1650 and 1900 had catastrophic
implications for many coastal inhabitants in the region.
The Process
A dune is a hill of sand built by aeolian processes. Dunes occur in different forms and sizes, formed by interaction with the wind. Most kinds of dunes are longer on the windward side where the sand is pushed up the dune and have a shorter "slip face" in the lee of the wind. The valley or trough between dunes is called a slack. A "dune field" is an area covered by extensive sand dunes.
Aeolian processes pertain to the activity of the winds and more specifically, to the winds' ability to shape the surface of the Earth. Winds can erode, transport, and deposit materials, and are effective agents in regions with sparse vegetation and a large supply of unconsolidated sediments. Although water is a much more powerful eroding force than wind, aeolian processes are important in arid environments,The term is derived from the name of the Greek god, Æolus, the keeper of the winds.
The Sand
Sand is a naturally occurring granular material composed of finely divided rock and mineral particles. The most common constituent of sand, in inland continental settings and non-tropical coastal settings, is silica (silicon dioxide, or SiO2), usually in the form of quartz, which, because of its chemical inertness and considerable hardness, is the most common mineral resistant to weathering.
The Flora and Fauna
Sand areas due to drought, heat, low soil nutrient poverty and developing habitat for a variety of endangered animal and plant species of European importance.
TO LOG THE EARTHCACHE:
You can park your car at the given coordinate.
To be able to log this earthcache you must meet following criteria:
1)Walk toN55° 38.440' E9° 44.442' and write down the text on the stone.
2)Follow the path on the right and walk up the dune enjoy the view ;)
3) Walk to te beach, when you look towards the hvidbjeg klit you see to the left a horizontal ledge. Try to explane how this ledge is formed. (look close to the vegetation and think logically)
4)This next task is optional! but very much appreciated. ;-)
Take a picture at this spot with the Hvidbjerg klit in the
background. (see picture bolow) with you GPS visually
Instructions:
Email the answer to question no. 1, 3 to EarthcacheHvidbjerg@gmail.com,
And upload the picture with your log.
Additional Hints
(No hints available.)