They differ oolites in that pellets lack the radial or concentric structures that characterize oolites.
2.
Cultural " spheres of influence " may also overlap or form concentric structures of macrocultures encompassing smaller local cultures.
3.
Bastion de San Diego is composed of three concentric structures; the first, second, and third circle.
4.
The island of Hawaii, to which Olympus Mons has often been compared, is a much smaller, steeper, and irregularly-shaped composite of at least five volcanoes, unlike the circular and concentric structure of Olympus Mons.
5.
The Republic of Venice is not accepted in the terms of Gasparo Contarini : it is called an aristocratic constitution, not a mixed one, with a concentric structure, and its apparent stability was not attributable to the form of government.
6.
The territory has been inhabited since ancient times, in the Punta Gorda River basin remains have been discovered almost destroyed in a pre-Hispanic civilization edified concentric structures, and analysis of pottery collected by Smithsonian researchers date it to about 3000 to 4000 years before the present era.