Grain size and mineralogical characteristics of the stream sediments, east of Abu Zeneima area, southwestern Sinai, Egypt

2019 ◽  
Vol 12 (6) ◽  
Author(s):  
Randa S. Ramadan ◽  
Ahmed Gad ◽  
Mohamed M. Yehia ◽  
Yehia H. Dawood ◽  
Nilly A. Kawady
10.5772/29309 ◽  
2012 ◽  
Author(s):  
K. Sekabira ◽  
H. Oryem-Origa ◽  
T. A. ◽  
G. Mutumba ◽  
E. Kakudidi

2018 ◽  
Vol 34 (2) ◽  
pp. 717
Author(s):  
Α. ΚΑΡΑΛΗ-ΒΟΥΔΟΥΡΗ ◽  
Γ. ΛΕΙΒΑΔΙΤΗΣ ◽  
A. ΜΕΤΤΟΣ

The study of the sedimentological and mineralogical characteristics of the coastal sediments in the Loutraki gulf, included analyses of a large number of samples, that is granulometry, thin section study and x-ray examination. From these data the granulometry paramètres were assessed such as mean grain size, standard deviation σ, skewness SK, and kurtosis KG of the sediments. The study of the sedimentological parameters based on the mean grain size the offshoreline is covered by coarse grain sand, whereas the tidal zone indicates a high energy environment. The longshoredrift is from Ν to S. Most of the sand is loosely graded in the nearschore area, medium graded in the foreshore area and well graded in the backshore area. Their constant declination indicates a trend for a better gradation of sediments southwards. The latter combined with the mean grain size indicate a reduction of kinetic energy from Ν to S. In addition, the beachrocks, were studied together with their, elevation and their mineral composition .


2015 ◽  
Vol 321 ◽  
pp. 25-38 ◽  
Author(s):  
Anne Krippner ◽  
Guido Meinhold ◽  
Andrew C. Morton ◽  
Eva Russell ◽  
Hilmar von Eynatten

Author(s):  
K. P. Staudhammer ◽  
L. E. Murr

The effect of shock loading on a variety of steels has been reviewed recently by Leslie. It is generally observed that significant changes in microstructure and microhardness are produced by explosive shock deformation. While the effect of shock loading on austenitic, ferritic, martensitic, and pearlitic structures has been investigated, there have been no systematic studies of the shock-loading of microduplex structures.In the current investigation, the shock-loading response of millrolled and heat-treated Uniloy 326 (thickness 60 mil) having a residual grain size of 1 to 2μ before shock loading was studied. Uniloy 326 is a two phase (microduplex) alloy consisting of 30% austenite (γ) in a ferrite (α) matrix; with the composition.3% Ti, 1% Mn, .6% Si,.05% C, 6% Ni, 26% Cr, balance Fe.


Sign in / Sign up

Export Citation Format

Share Document