[
	{
		code: "clay",
		triesPerChunk: 0.019,
		generator: "disc-followsurfacebelow",
		attributes: {
			inblock: { code: "soil-*", name: "fertcover", allowedVariants: ["low-none", "medium-none", "low-verysparse", "medium-verysparse", "low-sparse", "medium-sparse", "low-normal", "medium-normal"] },
			placeblock: { 
				code: "rawclay-red-*", 
				name: "clayfertcover",
				allowedVariantsByInBlock: {
					"soil-low-none": ["none"],
					"soil-medium-none": ["none"],
					"soil-low-verysparse": ["verysparse"],
					"soil-medium-verysparse": ["verysparse"],
					"soil-low-sparse": ["verysparse"],
					"soil-medium-sparse": ["verysparse"],
					"soil-low-normal": ["verysparse"],
					"soil-medium-normal": ["verysparse"]
				}
			},
			withLastLayerBlockCallback: true,
			radius: { dist: "uniform", avg: 13, var: 6 },
			depth: { dist: "uniform", avg: 0, var: 0 },
			thickness: { avg: 3.3, var: 1 },
			maxYRoughness: 1,
		},
		climate: {
			minRain: 0.27,
			minTemp: -10
		},
	},
	{
		code: "clay",
		triesPerChunk: 0.004,
		generator: "disc-followsurfacebelow",
		attributes: {
			inblock: { code: "soil-*", name: "fertcover", allowedVariants: ["low-none", "medium-none", "low-verysparse", "medium-verysparse", "low-sparse", "medium-sparse", "low-normal", "medium-normal"] },
			placeblock: { 
				code: "rawclay-blue-*", 
				name: "clayfertcover",
				allowedVariantsByInBlock: {
					"soil-low-none": ["none"],
					"soil-medium-none": ["none"],
					"soil-low-verysparse": ["verysparse"],
					"soil-medium-verysparse": ["verysparse"],
					"soil-low-sparse": ["verysparse"],
					"soil-medium-sparse": ["verysparse"],
					"soil-low-normal": ["verysparse"],
					"soil-medium-normal": ["verysparse"]
				}
			},
			withLastLayerBlockCallback: true,
			radius: { dist: "uniform", avg: 13, var: 6 },
			depth: { dist: "uniform", avg: 0, var: 0 },
			thickness: { avg: 3.3, var: 1 },
			maxYRoughness: 1,
		},
		climate: {
			minRain: 0.27,
			minTemp: -10,
			minY: 0.9,
			maxY: 1.0	
		},
	},
	{
		// fairly common Small patches of fireclay in BAUXITE SAND AND GRAVEL
		code: "fireclay",
		triesPerChunk: 0.004,
		generator: "disc-followsurfacebelow",
		attributes: {
			inblock: { code: "*-bauxite", name: "type", allowedVariants: [ "sand", "gravel" ] },
			placeblock: { code: "rawclay-fire-verysparse"	},
			withLastLayerBlockCallback: true,
			radius: { dist: "uniform", avg: 4, var: 2 },
			depth: { dist: "uniform", avg: 0, var: 0 },
			thickness: { avg: 2, var: 1 },
			maxYRoughness: 1,
		},
		climate: {
			minRain: 0.27,
			minTemp: -10,
		},
	},
	{
		// rare large patches of fireclay in BAUXITE SAND AND GRAVEL
		code: "fireclay",
		triesPerChunk: 0.0002,
		generator: "disc-followsurfacebelow",
		attributes: {
			inblock: { code: "*-bauxite", name: "type", allowedVariants: [ "sand", "gravel" ] },
			placeblock: { code: "rawclay-fire-verysparse"	},
			withLastLayerBlockCallback: true,
			radius: { dist: "uniform", avg: 12, var: 5 },
			depth: { dist: "uniform", avg: 0, var: 0 },
			thickness: { avg: 3.3, var: 1 },
			maxYRoughness: 1,
		},
		climate: {
			minRain: 0.1,
			minTemp: -10,
		},
	},
	{
		// COLD CLIMATE small RED clay patches in GRAVEL
		code: "redclay",
		triesPerChunk: 0.01,
		generator: "disc-followsurfacebelow",
		attributes: {
			inblock: { code: "gravel-*" },
			placeblock: { code: "rawclay-red-verysparse" },
			withLastLayerBlockCallback: true,
			radius: { dist: "uniform", avg: 4, var: 2 },
			depth: { dist: "uniform", avg: 0, var: 0 },
			thickness: { avg: 1, var: 0 },
			maxYRoughness: 1,
		},
		climate: {
			minRain: 0.27,
			minTemp: -25,
			maxTemp: -10.1,
		},
	},
	{
		// COLD CLIMATE small RED clay patches in SOIL
		code: "redclay",
		triesPerChunk: 0.01,
		generator: "disc-followsurfacebelow",
		attributes: {
			inblock: { code: "soil-*" },
			placeblock: { code: "rawclay-red-verysparse" },
			withLastLayerBlockCallback: true,
			radius: { dist: "uniform", avg: 4, var: 2 },
			depth: { dist: "uniform", avg: 0, var: 0 },
			thickness: { avg: 1, var: 0 },
			maxYRoughness: 1,
		},
		climate: {
			minTemp: -25,
			maxTemp: -10.1,
		},
	}
]