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Georockhop



  Twente
  The Netherlands

Added:
november 2003
Last Modified:
february 2012

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Location description

In eastern part of The Netherlands several sandquarries are located. The quarries are located in Sibculo, Westerhaar(sandquarry Alderink), Bruinehaar, Kloosterhaar (sandquarries Anker and Sierink) and Balderhaar (sandquarries Megamix and Oude Nijweme.

The sand are from the Enschede formation Enschede (Pleistocene; part of the Neogene period). This is a river sediment from rivers flowing west from the Baltic area. The pebbles originate from several sediments in the Baltic area. Famous are the sponges from the Ordovician period.

In the sandquarries the sand is sieved and sorted. The rocks and pebbles are on separate heaps. Beware of falling rocks!


Photo 1 of 5


Sand quarry Aalderink in Westerhaar, april 2004.
Added by: Fossielenzoeker on 22-03-2012

Do you have (more) photographs of this location? Please send your photographs using the Fossil Location Photo form!

Directions

The area is located north of the city of Almelo, in the eastern part of The Netherlands. From the village of Westerhaar take direction Sibculo, Kloosterhaar. Straight on to Balderhaar. Near this road several quarries are located. Please ask permission before entering the quarry (not a problem most times)! Also take your own helmet.

Adress Calduran, Kloosterhaar: Verlengde Broekdijk 27 Kloosterhaar.

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Finds

Between the pebbles and stones you can find sea urchins (Cretaceous period), sponges (Ordovician period), ammonites, trilobites, algae and petrified wood.

There are 16 photographs of fossils from this location in our Fossil ID System.
Go to the Twente Species List to identify your own finds!

Literature recommended by members

  • E. kemper, 1963: Geologischer Fuhrer durch die Grafschaft Bentheim und die angrenzenden Gebiete
    Een aanrader voor iedereen die in dit gebied zoekt.
    Added by webmaster
  • H.krul, 1954: Zwerfsteenfossielen van Twente, uitgave van de NGV
    125 pagina's. Een mooi boek waarin per tijdvak de bijbehorende zwerfsteenfossielen worden besproken die in Twente gevonden worden.
    Added by webmaster
  • Kurt Hucke, 1967: Einfuhrung in die Geschiebeforschung
    Een mooi boek over 'zwerfsteenkunde' dat bijna voor de helft uit foto's bestaat. het behandeld alle geologische periodes.
    Added by webmaster
  • Rhebergen, F., R. Eggink, T. Koops & B. Rhebergen, 2001: Ordovicische zwerfsteensponzen. Staringia 9 NGV
    Heldere afbeeldingen, duidelijke beschrijvingen en veel informatie over de in Wilsum te vinden Ordovicische sponzen. Daarnaast ook informatie over sponzen in het algemeen, zoals morfologie en leefwijze, en ook informatie over de ecologie
    Added by webmaster

Do you have (more) literature suggestions for this location? Please send your suggestion using the Literature form!

Other locations in the area

Fossil location: Alstätte
Fossil location: Gildehaus
Fossil location: Holtwick
Fossil location: Legden
Fossil location: Markelo
Fossil location: Rivierengebied (Deventer)
Fossil location: Rivierengebied (Zwolle, Haerst)
Fossil location: Rossum (oude klei groeve / old clay quarry)
Fossil location: Wilsum
Fossil location: Wüllen
Fossil location: Zandafgraving Gasselterveld
Fossil location: Zandafgraving Hoogersmilde
Geology location: Hondsrug (Gasselte)
Geology location: Losser (Staringgroeve)
Museum: Biochron Dierenpark Emmen
Museum: Kristal Museum
Museum: Natura Docet
Museum: Twentse Welle
Society: GEA Kring Drenthe, AOC Terra
Society: GEA Kring Twente: T Lansink
Society: Werkgroep Fossielen Twente: TwentseWelle

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