Table 2 Geotechnical characteristics of... | Emerald Publishing

Table 2

Geotechnical characteristics of glacial tills (after McGown and Derbyshire (1977))

Till	Class	Fabric	OCR	Relative comparison of geotechnical propertiesa
Till	Class	Fabric	OCR	Density	Compressibility	Permeability	Anisotropy
Deformation	G	Deformed basal sediments or bedrock	1	5	3	5–8
	W
	Mg
	Mc
Lodgement	G	Interlaying of glaciofluvial, joints, fissures, contortions; preferred clast orientation	2–5	4–7	1	5–6	7
	W			5–8	2	2–3
	Mg			6–8	2	4–5
	Mc			6–8	3	2
Melt-out	G	Occasional interlaying with glaciofluvial; clast oriented with englacial state	1–2	2–4	2–4	7–9	3–5
	W			2–6	3–5	4–5
	Mg			2–6	3–6	5–8
	Mc			2–7	4–7	3–4

Till	Class	Fabric	OCR	Relative comparison of geotechnical propertiesa
Till	Class	Fabric	OCR	Density	Compressibility	Permeability	Anisotropy
Deformation	G	Deformed basal sediments or bedrock	1	5	3	5–8
	W
	Mg
	Mc
Lodgement	G	Interlaying of glaciofluvial, joints, fissures, contortions; preferred clast orientation	2–5	4–7	1	5–6	7
	W			5–8	2	2–3
	Mg			6–8	2	4–5
	Mc			6–8	3	2
Melt-out	G	Occasional interlaying with glaciofluvial; clast oriented with englacial state	1–2	2–4	2–4	7–9	3–5
	W			2–6	3–5	4–5
	Mg			2–6	3–6	5–8
	Mc			2–7	4–7	3–4

a

1 is low; 9 is high

G, granular till; Mc, matrix till (cohesive); Mg, matrix till (granular); W, well-graded till