Su possibili stati termici della crosta granitica

Luigi Forni

Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti (1983)

  • Volume: 74, Issue: 6, page 396-404
  • ISSN: 0392-7881

Abstract

top
Possible thermal states of the granite crust. Apart from transient thermal regiments, the thermal state of the granite crust is solely determined by the flow from the upper mantle and the distribution of radiogenic sources (Birch et alii, 1968). In wiew of this premiss, a study was made of four actual thermal situations to determine both the development of radiogenic heat and that ascribable to the flow from the upper mantle. It was found that: a) the temperature increases caused by radiogenic sources was never more than 350 °C, which means that melting phenomena, if any solely determined by this factor can be ruled out; b) the sum of the two factors gives temperatures of more than 800 °C at depht of 15 ÷ 16 km. It may realistically be supposed, therefore, that a temperature of this nature, which is higher the melting of granite, must by attributable to pockets of molten material in the middle and upper layers of the crust.

How to cite

top

Forni, Luigi. "Su possibili stati termici della crosta granitica." Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti 74.6 (1983): 396-404. <http://eudml.org/doc/289355>.

@article{Forni1983,
author = {Forni, Luigi},
journal = {Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti},
language = {ita},
month = {6},
number = {6},
pages = {396-404},
publisher = {Accademia Nazionale dei Lincei},
title = {Su possibili stati termici della crosta granitica},
url = {http://eudml.org/doc/289355},
volume = {74},
year = {1983},
}

TY - JOUR
AU - Forni, Luigi
TI - Su possibili stati termici della crosta granitica
JO - Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti
DA - 1983/6//
PB - Accademia Nazionale dei Lincei
VL - 74
IS - 6
SP - 396
EP - 404
LA - ita
UR - http://eudml.org/doc/289355
ER -

References

top
  1. Beloussov, V.V. (1966) - Modern concepts of the structure and development of the Earth's crust and the upper mantle of continents, «Quart. Journ. Geol. Soc.», 122, 293-314. 
  2. Beloussov, V.V., Reisner, G.I., Rudich, E.M. e Sholpo, V.M. (1974) - Vertical movements of the Earth's crust on the continents, «Geophys. Surv.», 1, 245—273. 
  3. Birch, F., Roy, R.F. e Decker, E.R. (1968) - Heat flow and thermal history in New England and New York, chapter 33, in: «Studies in Appalachian Geology», eds. W.S. White e E-an Zen, Interscience, New York. 
  4. Carslaw, H.S. e Jaeger, J.C. (1959) - Conduction of heat in solids. 2a ed. Oxford Univ. Press.New York, 386 pp. Zbl0029.37801MR22294
  5. Forni, L. (in corso di stampa) - Evoluzione di anomalie geotermiche prodotte da masse rocciose calde, «Atti Acc. Sc. Torino». 
  6. Forni, L. e Malaroda, R. (1978) - A plume induced geothermic cycle and its gravimetric and isostatic effects; a mathematical model, «Boll. Soc. Geol. It.», 97, 739—748. 
  7. Goguel, J. (1975) - La Géothermie. Doin, Paris, 171 pp. 
  8. Kappelmeyer, O. e Haemel, R. (1974) - Geothermics with special reference to applications, «Geoexploratione Mon.», ser. 1, 4. 
  9. Lachenbruch, A.H. (1968) - Preliminary geothermal model of the Sierra Nevada, «Journ. Geophys. Res.», 73, 6977-6989. 
  10. Lachenbruch, A.H., Sass, J.H., Munroe, R.J. e Muses, T.H. (1976) - Geothermal setting and simple heat conduction model for the Long Valley Caldera, «Journ. Geoph. Res.», 81, 769-784. 
  11. Lovering, T.S. (1935) - Theory of heat conduction applied to geological problems, «Geol. Soc. Amer. Bull», 46, 69—94. 
  12. Malaroda, R. (1970) - Il granito: una roccia e molti problemi, «Boll. Ass. Min. Subalp.», Torino, 4, 621-674. 
  13. Mongelli, F. (1981) - Elementi di prospezione per l'energia geotermica. Adriatica Editrice, Bari, 150 pp. 
  14. Ramberg, H. (1967) - Gravity, deformation and the Earth’s crust. Academic Press, London e New York, 214 pp. 
  15. Roy, R.F., Blackwell, D.D., Decker, E.R. e Birch, F. (1968) - Heat generation of surface rocks and heat flow provinces, «Trans. Am. Geoph. Union.», 49, 319. 
  16. Sorgenfrei, Th. (1971) - On the granite problem and the similarity of salt and granite structure, «Geol. Foerem. Stockh. Foerh.», 93, 371-435. 
  17. Wedepohl K.H. ed. (1978) - Handbook of Geochemistry. SpringerBerlin. 
  18. Winkler, H.G.F. (1976) - Petrogenesis of metamorphic rocks. Springer Berlin, 4a ed., 334 pp. 
  19. Willie, P.J. (1971) - The dinamic Earth. Wiley e Sons, New York, 416 pp. 

NotesEmbed ?

top

You must be logged in to post comments.

To embed these notes on your page include the following JavaScript code on your page where you want the notes to appear.

Only the controls for the widget will be shown in your chosen language. Notes will be shown in their authored language.

Tells the widget how many notes to show per page. You can cycle through additional notes using the next and previous controls.

    
                

                
Note: Best practice suggests putting the JavaScript code just before the closing </body> tag.