Agriculture & Biology
soil formation
100%
Cascade Mountain region
98%
basalt
94%
weathering
81%
minerals
42%
smectite
35%
soil
34%
soil temperature
23%
clay
20%
allophane
19%
halloysite
17%
Andisols
17%
Entisols
17%
Sierra Nevada (California)
16%
kaolinite
16%
Ultisols
15%
Alfisols
15%
soil minerals
14%
kaolin
14%
snow
12%
X-ray diffraction
11%
rocks
10%
cations
9%
light microscopy
9%
climate
8%
winter
7%
water
4%
Earth & Environmental Sciences
pedogenesis
81%
environmental gradient
77%
basalt
56%
weathering
55%
pedon
39%
mineral
32%
soil
28%
snowline
28%
smectite
19%
soil temperature
19%
Andisol
14%
Entisol
13%
allophane
13%
Alfisol
13%
halloysite
13%
Ultisol
13%
clay
12%
material
11%
kaolin
10%
water availability
9%
kaolinite
9%
microscopy
8%
cation
8%
snow
7%
X-ray diffraction
7%
dissolution
7%
winter
5%
land
5%
climate
5%
loss
5%
index
4%
chemical
4%
rock
4%
analysis
2%