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	1.	No cover image available High-calcium, high-reflectance limestone resources of Illinois by Goodwin, Jonathan Baxter, James Symposium on industrial minerals of the upper Midwest ( 10 april 1980 : Bloomington) Material type: Article; Format: print Language: Eng In: Geological Society of America bulletin 92(9), part I, 1981, p. 621-628: : ill., carte, tab., rés.(Angl) Availability: No items available.
	2.	No cover image available Search of high-calcium limestone in Silurian reefs of northern Indiana by Ault, Curtis Carr, Donald Symposium on industrial minerals of the upper Midwest ( 10 april 1980 : Bloomington) Material type: Article; Format: print Language: Eng In: Geological Society of America bulletin 92(9), part I, 1981, p. 641-647: : carte, tab., rés.(Angl) Availability: No items available.
	3.	No cover image available Oceanic chemism, internal geodynamic phenomena and biosphere evolution : Application to the Barremian crisis "The creation of the modern ocean" by Renard, Maurice Conférence: modifications biologiques-événements géologiques ( 10-11 avril, 1986 : Pau) Material type: Article; Format: print Language: Fre Other title: Chimisme de l'océan, phénomènes géodynamiques internes et évolution de la biosphère. Application à la crise barrémienne: "La naissance de l'océan moderne" In: Bulletin des centres de recherches exploration-production Elf Aquitaine 10(2), 1986, p. 593-606: : ill., graph., rés.(Angl., Fr) Availability: No items available.

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