Electronic Supplement to
Liquefaction Features Produced by the 2010–2011 Canterbury Earthquake Sequence in Southwest Christchurch, New Zealand, and Preliminary Assessment of Paleoliquefaction Features

by P. Villamor, P. Almond, M. P. Tuttle, M. Giona-Bucci, R. M. Langridge, K. Clark, W. Ries, S. H. Bastin, A. Eger, M. Vandergoes, M. C. Quigley, P. Barker, F. Martin, and J. Howarth

Table S10. Marchand Site: MAR 4 Trench Unit Descriptions

Depth (cm) Unit Name Description*
0–9 C 2.5Y 4/3 (olive); fine sand; loose, abrupt wavy contact. Injected liquefaction sand.
9–64 Ah 10YR 3/2 (very dark grayish brown); silt loam; friable, brittle; strong fine to medium nutty structure; sharp contact to injected sand, gradual wavy boundary to 3C(g).
64–80 2C 2.5Y 4/3 (olive); fine and medium sand; very friable to loose; sharp wavy contact. Injected sand.
80–103 3C(g) 2.5Y 5/1-2 (gray; 75%) with common (25%) fine distinct 10YR 5/4 (yellowish brown) mottles, loamy silt; friable, semideformable (soft feel); weak coarse blocky structure; clear wavy contact.
103–145 4Cg 2.5Y 4/1 (dark gray) with 7.5YR 4/4 (brown) with few vertically aligned mottles; fine sand and loamy silt in 4–5-cm-thick alternating beds; soft, semideformable; massive to weak medium blocky structure.

There are no notes for this trench description.

* Soil description at vertical line 2.

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