Geophysics Questions: Magnetic & Gravimetric Answers

[nicco35]

Hello, Could you tell me help with two questions, please

The question reads as follows:

1) Magnetic methods: According magnetic values
matic susceptibility minerals can be classified into three
basic groups that have their names. Bring
designation of these groups and their most basic
characteristic. Do that holding (s) groups fall Mi-
Neral containing iron? corroborate concretely

2) Gravimetry. The density of rocks and soil depends on the density of minerals, which constitute them further
porosity, and, finally, the proportion of pores filled with air and aqueous solutions. reports fol-
ing rocks in a series from lowest to highest density:

sandstone - basalt - quartz sand - Granite - amphibolite with 30% magnetite - Clay

Thank you very much for your help..

 

[DaveC426913]

We can't help you until you help yourself.

 

[nicco35]

Why are you all so cruel...

 

[DaveC426913]

We are not being cruel. Some day, you will be mining an asteroid by surgical emplacement of small nuclear charges. Your partner, my grand-child, will be assisting from her own spacesuit, just a metre away. You want to be sure that you know what you're doing, right?

When you signed up, you acknowledged that you read the forum rules and would abide by them. And so did we. We are not allowed to help unless you show an effort first.

See forum rules here:
https://www.physicsforums.com/threads/physics-forums-global-guidelines.414380/
"You MUST show that you have attempted to answer your question in order to receive help. You MUST make use of the homework template, which automatically appears when a new topic is created in the homework help forums."

 

[DeeNos]

1) The three basic groups of minerals based on their magnetic susceptibility values are diamagnetic, paramagnetic, and ferromagnetic. Diamagnetic minerals have a negative susceptibility value, paramagnetic minerals have a positive susceptibility value, and ferromagnetic minerals have a very high positive susceptibility value. Iron-containing minerals typically fall into the ferromagnetic group, as they have a high susceptibility value due to their high iron content.

2) The series of rocks from lowest to highest density would be clay, sandstone, quartz sand, granite, basalt, and amphibolite with 30% magnetite. Clay has the lowest density due to its high porosity and low mineral density. Sandstone and quartz sand have slightly higher densities due to their compacted nature. Granite has a higher density due to its mineral composition, and basalt has an even higher density due to its high iron content. The highest density in the series is amphibolite with 30% magnetite, as the addition of magnetite increases the overall density of the rock.