Wall-Wash Data Archive

The wall-wash, electrolyte-sampling kits are described here. The analytical methods employed are detailed here. The entire dataset for wall-wash analyses carried out to date can be found in the table below.

Electrolytes concentrations are recorded in units of nanomoles/sqcm.

Note that the table provides extensive ordering and filtering capabilities. Note also that data can be exported.

I’m happy for people to make of this data what they will, and to use it as they feel fit. However, if published elsewhere, an acknowledgement would be nice.

Wall Wash Analysis Results

wdt_ID Sample ID Date Sampled Sampled By Country Province/State/Region Crag Route Position on Route GPS Crag Aspect Exposure To Weather Distance to Sea Rock Type Comments on Location Corrosion Status pH Sodium Potassium Magnesium Calcium Aluminium Iron Chloride Sulphate Bicarbonate Silicate Calcium AS Magnesium AS Aluminium AS Iron AS Sulphate AS Silicate AS Total Sulphate Elemental Sulphur Lab Book Reference Comments on Chemistry
1 5/18-3 11/08/2018 Jomi Fred Hubner Brazil Santa Catarina Campo Escola da Barra da Lagoa Unnamed 1st bolt (8m from ground) 27.578661 S 48.416485 W E overhung 10 to 100m granite / diorite etc under a roof but quite exposed to rain as well as condensation low 5,50 548 16 34 147 0 0 665 40 33 0 40 44-3
2 5/18-4 15/07/2018 Rodrigo Castelan Carlson Brazil Santa Catarina Campo Escola da Barra da Lagoa Duelo de Titans belay anchors (22m) 27.57967 S 48.417114 W E vertical 10 to 100m granite / diorite etc low 5,50 4.517 31 94 328 0 0 4.789 147 0 0 147 44-4
3 5/18-6 11/08/2018 Jomi Fred Hubner Brazil Santa Catarina Campo Escola da Barra da Lagoa Mau olhado 1st bolt (22m from ground) 27.579395 S 48.416885 W E slab 10 to 100m granite / diorite etc low 5,50 313 14 0 153 0 0 351 7 34 0 7 44-6
4 5/18-1 11/08/2018 Rodrigo Castelan Carlson Brazil Santa Catarina Campo Escola da Barra da Lagoa Farinha pouca meu pirao primeiro ground level (1.5m) 27.579855 S 48.41682 W E slab 10 to 100m granite / diorite etc low 5,50 2.154 33 167 213 0 0 2.461 73 0 0 73 44-1
5 5/18-5 15/07/2018 Jomi Fred Hubner Brazil Santa Catarina Campo Escola da Barra da Lagoa Piloto de Asteroide 1st bolt 27.580263 S 48.416847 W E slab 10 to 100m granite / diorite etc low 5,50 1.231 20 20 237 0 0 1.492 7 37 0 7 44-5
6 5/18-2 15/07/2018 Rodrigo Castelan Carlson Brazil Santa Catarina Campo Escola da Barra da Lagoa Sobre as Ondas second bolt (8m) 27.579468 S 48.416748 W E slab 10 to 100m granite / diorite etc low 5,50 6.985 39 123 542 0 0 7.271 382 52 0 382 44-2
7 10/17-20 03/06/2018 Luis Silva Portugal Lisboa Amizade Vaselina belay 38º47'33.25N 9º23'27.22"W W vertical 1km to 10km granite / diorite etc low 6,50 31 5 18 180 0 0 0 0 432 0 0 42-6
8 10/17-11 03/06/2018 Luis Silva Portugal Lisboa Amizade Gaviao 1st bolt 38º47'33.46N 9º23'27.80"W W slab 1km to 10km granite / diorite etc low 7,00 57 29 130 218 0 0 0 0 782 0 0 42-4
9 10/17-7 03/06/2018 Luis Silva Portugal Lisboa Amizade Chamine belay 38º47'33.48N 9º23'27.21"W W vertical 1km to 10km granite / diorite etc low 7,00 130 22 148 913 0 0 0 0 2.273 0 0 42-3
10 10/17-15 22/12/2017 Luis Silva Portugal Lisboa Casal Pianos Inspector Gadget top 38º53'37.92N 9º26'17.09"W E vertical 10 to 100m basalt uncertain 5,50 179 18 93 272 0 61 172 0 937 0 0 42-5
Sample ID Date Sampled Sampled By Country Province/State/Region Crag Route Position on Route GPS Crag Aspect Exposure To Weather Distance to Sea Rock Type Comments on Location Corrosion Status pH Sodium Potassium Magnesium Calcium Aluminium Iron Chloride Sulphate Bicarbonate Silicate Calcium AS Magnesium AS Aluminium AS Iron AS Sulphate AS Silicate AS Total Sulphate Elemental Sulphur Lab Book Reference Comments on Chemistry

The charts below indicate the make up of the samples with respect to geographic distribution, rock type, and various other environmental parameters.

The spread of values for the anions in the entire dataset is a s follows –

The spread of values for the major cations in the entire dataset is as follows –

The difference between high and low corrosion crags with respect to sulphate levels is striking.