Chalk putty index properties according to various researchers
| Author | Sample name | Sampling location | Formation | Mean IDD: Mg/m3 | Preparation method | Grading range | LL: % | PL: % |
|---|---|---|---|---|---|---|---|---|
| Clayton (1978)* | 4C | Swanley | Seaford | 1·43 | Oven-dry crushed | <2 mm | n/a | n/a |
| Doughty (2016)† | D | Wikinger | Maastrichtian | 1·50 | Saturated-crushed | Unrestricted‡ | 33−38 | 23−25 |
| Bialowas (2017) | B | St. Nicholas-at-Wade | Margate | n/a | Oven-dry crushed | Unrestricted‡ | 30 | 22 |
| Author | Sample name | Sampling location | Formation | Mean IDD: Mg/m3 | Preparation method | Grading range | LL: % | PL: % |
|---|---|---|---|---|---|---|---|---|
| 4C | Swanley | Seaford | 1·43 | Oven-dry crushed | <2 mm | n/a | n/a | |
| D | Wikinger | Maastrichtian | 1·50 | Saturated-crushed | Unrestricted | 33−38 | 23−25 | |
| B | St. Nicholas-at-Wade | Margate | n/a | Oven-dry crushed | Unrestricted | 30 | 22 |
Note: see text for preparation method details.
Old lithostratigraphy used by original author.
Some material data obtained from Doughty et al. (2018).
‘Unrestricted grading’ – that is, no sieving treatment was applied.
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