Artículos de revistas
Computacional Routine For Determination Of The Main Axes Of Grain Images [granfor: Rotina Computacional Para A Determinação Dos Principais Eixos De Imagens De Grãos]
Registro en:
Geociencias. , v. 26, n. 2, p. 119 - 126, 2007.
1019082
2-s2.0-38649098441
Autor
Vidal A.C.
Fachini M.
Institución
Resumen
The grain morphology is an important source of information in the study of grains provenance and transportation characteristics. Many proposed methods for characterization of grains are based on the dimensions of the largest (L), shortest (S) and intermediary (I) axis. This paper presents a programming routine to measure the dimensions of all grain axes and to select the main axes used in the study of morphology. The program uses bi -dimensional images of grains, in *.jpg format, and black-white colors. The determination of axes may be done from images containing many grains. 26 2 119 126 AL-ANSARI, N.A., AL-JABBARI, M.H., MCDONALD, D., MCMANUS, J., A Fortran (IV) program for textural properties (roundness, sphericity, and shape) evaluation of pebble sized clastic sediment (1981) Computers & Geoscience, 7, pp. 311-316 ANJOS, S.M.C. SOUZA R.S. BLAUTH, M. RODRIGUES, C.R.O. SOUZA, A.L.S. Análise de imagens no estudo do sistema poroso de rochas- reservatório. Boletim Geodências PETROBRAS, v. 9, n. (2/4), p. 157-173, 1995BARRETT, P.J., The shape of rock particles, a critical review (1980) Sedimentology, 27, pp. 291-303 DRAKE, L.D., Rock texture, an important factor in clast shape studies (1970) Journal of Sedimentary Petrology, 40, pp. 1356-1361 DOBKINS, J.E., FOLK, R.L., Shape development on Tahiti-nui (1970) Journal of Sedimentary Petrology, 40, pp. 1167-1203 EHRLICH, R., DAVIES, D.K., Petrography and reservoir physics I: Objective classification of reservoir porosity (1991) AAPG Bulletin, 75 (10), pp. 1547-1562. , a EHRLICH, R., DAVIES, D.K., Petrography and reservoir physics II: Relating thin section porosity to capillary pressure, the association between pore types and throat size (1991) AAPG Bulletin, 75 (10), pp. 1563-1578. , b EHRLICH, R., ORZECK, J.J., Detrital quartz as a tracer-fourier grain shape analysis (1974) Journal of Sedimentary Petrology, 44, pp. 145-150 EHRLICH, R., WEINBERG, B., An exact method for characterization of grain shape (1970) Journal of Sedimentary Petrology, 40, pp. 205-212 EHRLICH, R., BROWN, J.P., YARUS, J.M., The origin of shape frequency distributions and the relationship between size and shape (1980) Journal of Sedimentary Petrology, 50 (2), pp. 475-484 FOLK, R.L., (1970) Petrology of sedimentary rocks, , Austin Texas, Hemphills, 184 p HOSHEN, J., KOPELMAN, R., Percolation and cluster distribution I. Cluster multiple labeling technique and critical concentration algorithm (1976) Physical Review B, 14 (8), pp. 3438-3445 PETTIJOHN, F.J., POTTER, P.E., SIEVER, R., (1987) Sand and sandstone, , Springer, 553 p SNEED, E.D., FOLK, R.L., Pebbles in the lower Cobrado River, Texas, a study in particle morphogenesis (1958) Journal of Geology, 66, pp. 114-150 STARKEY, J., SAMANTARY, A.K., Amicrocomputer-based system for quantitative petrographic analysis (1994) Computers & Geosdences, 20 (9), pp. 1285-1296 ZINGG, T., Beiträge zur Schotteranalyse. (1935) Mineralogische und Petrologische Mitteilungen Schweizerische, 15, pp. 38-140