Stone balls

Stone balls

The terms Stone balls, "stone ball", "stone spheres", and "stone sphere" have been used to designate spherical stone objects of both natural and artificial origin. Different types of stone balls include:

Natural

*Natural Stone Balls
**megaspherulites
**cannonball concretions
**Moqui marbles
**spherical corestones created by spheroidal weathering

Artificial

*Artificial Stone Balls (Petrospheres)
**lapidary spheres
**stone round shot (cannonballs)
**spherical stone shot for trebuchets
**Stone spheres of Costa Rica
**Carved Stone Balls of Scotland

External links

tone round shot (cannonballs)

*Ammunition column

*Ruffell, W.L., 1996, [http://riv.co.nz/rnza/hist/gun/smooth4.htm The Gun - Smoothbore Era 1550-1860: Projectiles] Royal New Zealand Artillery Old Comrades' Association, New Zealand.

tone balls (spheres) of Costa Rica

*Hoopes, J.W., 2005, [http://web.ku.edu/~hoopes/balls/ The Stone Balls of Costa Rica] University of Kansas, Lawrence, Kansas.

Carved stone balls of Scotland

*Hunterian Museum and Art Gallery, nd, [http://www.hunterian.gla.ac.uk/collections/museum/online_exhibitions/stones/objects/objects.shtml Carved Stone Balls] A gallery of carved stone ball photographs & information
*Marischal Virtual Museum, nd, [http://www.abdn.ac.uk/virtualmuseum/index.php?page=topic&topic=ball,..carved..stone&case=n06&first=7&last=18&roomlocation=ng ball, carved stone] Aberdeen Museum's virtual gallery of their Carved Stone balls

Megaspherulites

* Baird, Bill, 1990, [http://www.edinburghgeolsoc.org/edingeologist/z_24_04.html "Stone Spheres"] , The Edinburgh Geologist, no 24 (Spring)

*Heinrich, P.V., 2007, [http://www.hgms.org/BBG/Jul07.pdf Megaspherulites." PDF version, 1.4 MB] BackBender's Gazette. vol. 38, no. 7, pp. 8-12.

* Rodríguez, E.A., 2002, [http://web.archive.org/web/20030707135338/http://www.mexicodesconocido.com.mx/english/naturaleza/bellezas_naturales/detalle.cfm?idsec=6&idsub=0&idpag=1681 "The fantastic balls in el Cerro Piedras Bola (Jalisco)"] , México desconocido # 305, July 2002. Last visited February 11, 2008.

* Smith, R.K., R.L. Tremallo, and G.E. Lofgren, 2000, "Megaspherulite Growth: Far From Equilibrium Crystallization", GeoCanada 2000 - The Millennium Geoscience Summit, Canadian Society of Exploration Geophysicists Annual Meeting.

*Smith, R.K., R.L. Tremallo, and G.E. Lofgren, 2001, [http://ammin.geoscienceworld.org/cgi/content/abstract/86/5-6/589 "Growth of megaspherulites in a rhyolitic vitrophyre"] , American Mineralogist. vol. 86, pp. 589–600.

Cannonball Concretions

* Hanson, W.D., and J.M. Howard, 2005, [http://www.state.ar.us/agc/mp22.pdf "Spherical Boulders in North-Central Arkansas" PDF version, 2.8 MB] Arkansas Geological Commission Miscellaneous Publication n. 22, pp. 1-23.
*Heinrich, P.V., 2007, [http://www.hgms.org/BBG/Aug07.pdf "The Giant Concretions of Rock City Kansas" PDF version, 836 KB] BackBender's Gazette. vol. 38, no. 8, pp. 6-12.
* Irna, 2006, [http://irna.lautre.net/Tout-ce-que-la-nature-ne-peut-pas,45.html All that nature can never do, part IV : stone spheres]
* Irna, 2007a, [http://irna.lautre.net/Stone-balls-in-France-too.html Stone balls : in France too!]
* Irna, 2007b, [http://irna.lautre.net/Boules-de-pierre-en-Slovaquie.html Stone balls in Slovakia, Czech Republic and Poland]
* Hokianga Tourism Association, nd, [http://www.hokiangatourism.org.nz/activities/koutuboulders.htm "Koutu boulders"] Really nice pictures of cannonball concretions.
* Moeraki Boulders
* Rock City, Kansas
* United States Geological Survey, nd, [http://nd.water.usgs.gov/lewisandclark/points/concretions.html "cannonball concretion"]


Wikimedia Foundation. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • Carved Stone Balls — are petrospheres, usually round and rarely oval. They have protruding knobs on the surface, from 3 to 160 in number. Their size is fairly uniform, they date from the late Neolithic to possibly the Iron Age and are mainly found in Scotland. They… …   Wikipedia

  • Carved Stone Balls — Die Carved Stone Balls (gravierte Steinkugeln) sind als etwas mehr als 420 Exemplare bekannt. Sie entstanden im späten Neolithikum und in der Bronzezeit (3500–1500 v. Chr.) Die meisten wurden im nordlichen Schottland im Aberdeenshire zwischen… …   Deutsch Wikipedia

  • Stone spheres of Costa Rica — Stone sphere in the courtyard of the National Museum of Costa Rica. The stone spheres (or stone balls) of Costa Rica are an assortment of over three hundred petrospheres in Costa Rica, located on the Diquis Delta and on Isla del Caño. Known… …   Wikipedia

  • Stone Age — the period in the history of humankind, preceding the Bronze Age and the Iron Age, and marked by the use of stone implements and weapons: subdivided into the Paleolithic, Mesolithic, and Neolithic periods. [1860 65] * * * First known period of… …   Universalium

  • Balls (Elizabeth Cook album) — Infobox Album Name = Balls Type = Studio Longtype = Artist = Elizabeth Cook Released = May 1, 2007 Recorded = 2007 Genre = Country Length = Label = Emergent Producer = Reviews = *Allmusic Rating|4|5 [http://www.allmusic.com/cg/amg.dll?p=amg… …   Wikipedia

  • Balls and My Word — Infobox Album | Name = Balls And My Word Type = Album Artist = Scarface Released = March 25, 2003 Recorded = 2002 2003 Genre = Hip Hop Label = Rap A Lot Records Producer = Ensayne Wayne T. Mix Mike Dean N.O. Joe Tone Capone 7 Aurealis Sam Sneed… …   Wikipedia

  • stone-tool industry — Any of several assemblages of artifacts that display the earliest technology used by humans. These stone tools have survived in great quantities and now serve as the major means of determining hominid activities. Archaeologists have classified… …   Universalium

  • Recumbent stone circles — Scotland ] Recumbent stone circles are a variation on the more familiar standard stone circles found throughout the British Isles and Brittany. The recumbent circle is a form peculiar to the north east of Scotland. Recumbent stone circles date… …   Wikipedia

  • Gefecht bei Balls Bluff — Teil von: Amerikanischer Bürgerkrieg Tod von Oberst Edward D. Baker …   Deutsch Wikipedia

  • Chef's Chocolate Salty Balls — This article is about the South Park episode. For the song, see Chocolate Salty Balls. Chef s Chocolate Salty Balls South Park episode South Park a …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”