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     "label": "Basic volcanics and volcanogenic sediments",
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     "label": "Permian-Triassic shales and sandstones",
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     "groupId": "0",
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     "label": "Carboniferous sand and siltstones",
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     "groupId": "0",
     "height": 20,
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    {
     "label": "Silurian carbonates deposited",
     "url": "8d9f3b03d686d0223967c2f1e5e2d39a",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAPklEQVQ4je3MMRUAMQhEwR8ewnB2cs4GyjZpUkQA5Y6AyX9TgmJAQKegFnwToYCciF4OHTp06PCGAa2hLKAPGzgJdcG774cAAAAASUVORK5CYII=",
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     "label": "Silurian sand and siltstones deposited",
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     "label": "Cambrian-Silurian carbonates",
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     "label": "Cambrian-Silurian mudstones and shales",
     "url": "d2b951e18a93c7489d2d6fa9bf691edc",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAWUlEQVQ4je2SsQ0AMQgDTxG7/BrZLKuxRpZB33yVCAqUJuJdYvkKbAE6k86qB5jbNfYMlQ82NtODRV4DCWIplQR6jWVaBsQNZVrmjh8WBP6zqQA0lHaIZugLavUXSAZSlBcAAAAASUVORK5CYII=",
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     "label": "Cambrian carbonates and siliciclastites",
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     "groupId": "0",
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     "label": "Cambrian calcareous mudstones and sandy turbidites",
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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAWUlEQVQ4je2SsQ0AMQgDTxG7/BrZLKuxRpZB33yVCAqUJuJdYvkKbAE6k86qB5jbNfYMlQ82NtODRV4DCWIplQR6jWVaBsQNZVrmjh8WBP6zqQA0lHaIZugLavUXSAZSlBcAAAAASUVORK5CYII=",
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     "label": "Proterozoic siliciclastic and carbonate sediments",
     "url": "fe31620e52a2d87f3e3fe52c30aebf3a",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQElEQVQ4je3MMREAIAwDwJCrsDoDN7VRZTkWBgR0zAv4qDopITGARIeEXAt7IpSAmIh+Dh06dOjwhSRamslI9AVVtA2cXnEowwAAAABJRU5ErkJggg==",
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     "label": "Precambrian diamictites and sandstones",
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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQElEQVQ4je3MMREAIAwDwJCrMJyBF4xUWWCAAQEd8wI+1pqdREcBCRk326MiJBuiIvo5dOjQocMXSkiylWQS8gCC1Qyb3LZHcQAAAABJRU5ErkJggg==",
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     "groupId": "0",
     "height": 20,
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    {
     "label": "Proterozoic sandstones in Caledonian nappe units",
     "url": "840c3cb245ee21a667e76fc9f40c3249",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAbElEQVQ4je2SsRHAIAhFvxyDuQfDqMOwh5NhCjvUWCRNzlD+d7yCDwOIqjnCjUiGavbxLTND5S5ryUPVBKBNhStGFMDTjQdzorA3NnQCkTLNd4x7/WNjq4Ud+8ANDxT+b3OC0AyVKLwiM0O9AGDfOKVZjCwNAAAAAElFTkSuQmCC",
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     "groupId": "0",
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     "label": "Proterozoic tholeiitic basalts",
     "url": "34d3c9d73cc3aa5c2c1eb8e14d8d387e",
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     "label": "Proterozoic sandstones",
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    {
     "label": "Tertiary (Paleocene-Eocene?) plateau basalts",
     "url": "a13bd914f6b26864bdc5e7a5ae2e80e0",
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    {
     "label": "Jurassic and Cretaceous shallow marine sandstones",
     "url": "67668a939a72998da24d75c480ae015d",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAiUlEQVQ4jWNp+P/YgYGByYEBDRj6SzGc3/gMXZhBchkPg8RKPqxyxr5SB1gkl/E5PI/6Uo8uyfifgYH3CjvDZ52fKOJf9H4zMK7AMIuBgYGB4VnkJwYW7FLkg1EDRw0cNXDUwFEDoQZKLec78DzqC4bEf0YGBp5LrBgl9mednwz/GbEb9jzq0wEAjKMmEZV2EbcAAAAASUVORK5CYII=",
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     "label": "Jurassic marine sandstones and shales",
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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAa0lEQVQ4jeXSwQmAMBBE0R/YGsQaRFJDyhCbsRttI3dvHqxBbGI9BSxgAgZ/Ae8yY9vuaYCEoAjZJkgEFgWIg0mgV38EVyCIMAdsBHoR2AEWRVipgVGqgLcIu6hxm1mElRoZ5fNgPlyDnZAfu/wQmBhLqqkAAAAASUVORK5CYII=",
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     "label": "Triassic-Jurassic sandstones and pelites",
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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAaklEQVQ4je2UoRGAQAwEl5mvABrAQB3xXxRpCp86ePMNQAuPAANEobPydmblJdUmgPBCM+j6XsEmsNl3mrFkEyKF5WM7qAOM+3Mej8t5yAbJV/+JYAQjGMEI3kGbMSmOaVB757H3y3lIwU5Rvxnq4xBfIQAAAABJRU5ErkJggg==",
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     "groupId": "0",
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     "label": "Triassic sandstones, dolomite and shales",
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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA6klEQVQ4jeWUMU7DMBhGX9IfBmhKGiIU+RwcIDfjOFwjO0zsCCZk1FYkThNUSmwWhqCIIktmQHyr9Z5s//YnN9euxFISIjGVKEuZRFyF8CUWRIUwjSK61hTLwgvqdh3m1RARUaRfWckWGbrWk4VDafoGtVTsh/2ElXV8zAMO47HDTTxjCzA7YjViDSB39RPzkzNaD2HrHNvmmcEOE1byVBFFHjbg/MD1yKWf68dIYN9fEN4CnjP5No7fOnISSDbnfz4bXWtOPeur33W0n/V1MfqGLSCPi7wyL5rMo77WfUOeKt7tG/djNqb6AM5JT4eJpN5aAAAAAElFTkSuQmCC",
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     "groupId": "0",
     "height": 20,
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    {
     "label": "Permian-Triassic carbonates, sandstones and shales",
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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAiElEQVQ4je2UsQ3DIBQFz4jS9NhbxMkADJAtMkgGiTJFFmACZwtMDzWkMBImSpmSVz2907/yy9c1m8cFwyG3tfbnAr/YW8M6131xcHZYmQRGB+6bqtCPMIW959bHUIYptswpOAmQ/Dld2IVd2IVdWIQiYecA/vCxtxF03PvwdZDLoGPLvAKRsB+chCEC36xcjwAAAABJRU5ErkJggg==",
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     "groupId": "0",
     "height": 20,
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    {
     "label": "Carboniferous-Permian sandstones and shales",
     "url": "7d66bbb6de15247bf3081a39b1a114ae",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA3UlEQVQ4jdXUwWnDQBCF4X/XI1n2JWBEECrBB1eQgwpwASbNpIuUkHQRVIVLCJuQg2UwWJG9k1PAQYRkYS5+9/cx7Awrz2ttlp4Gg6wirWw8DcqDBYgHMYEuIuEYqKZVUulwPrAf9jjnRl1Z5AtCn4Z2Q0dd1AxxGHUl9zmqmjThxE0AyHw26srj8ZV5dsM0AdyhuP6NqOcfXQXkrqip0gaEX57nFpBVovVX7M/mOsB3IywA8gQ4I1ABuTfCvnMlSzEFzb+vMi/blz5QFv9HP04d5azmFD/ZXnS3kfYLSk1KvAFeOx8AAAAASUVORK5CYII=",
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     "groupId": "0",
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     "values": [
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     "label": "Devonian continental siliciclastic sediments",
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     "label": "Proterozoic metasediments",
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     "label": "Tertiary siliciclastic sediments",
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     "label": "Eocene tholeiitic plateau basalts",
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     "label": "Paleocene-Eocene tholeiitic basalts",
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     "label": "Cretaceous-Paleocene sandstones and shales",
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    {
     "label": "Tertiary felsic intrusions",
     "url": "8043578c34286571b06be613b2a2c5ba",
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    {
     "label": "Late to post-kinematic granitic s.l. intrusions",
     "url": "4d9dbbd5af6caea8ce16e45896fba3dd",
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     "label": "Proterozoic augen granite intrusions",
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     "label": "Proterozoic intrusive complexes, mainly syenites",
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     "label": "Carboniferous-Permian carbonates",
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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAwUlEQVQ4ja3SMRKCMBCF4R9mC2ihpuQe4WSG03gMcw9La2jtwAICBoMzmt0qxc63eTNPrsxmAnOfiU6b7e/RwnA538nByQRmtETWoOnAe08Tx+p+35kAObvadFC6HXvc4lhtwwSihQ3rx0QTgwOYigWgBraBWhiAtFlYjRSs7t8ip2JNB4VbQQ2sdDDzpdi/Yn6ixf4H8yk/ip2CwQFMxQJQA9tALQxANLG6B6kUscqC5OAmD55UqHBLaSGOwYLl4F5bz6dzuivOWAAAAABJRU5ErkJggg==",
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     "label": "Tertiary mafic to intermediate intrusives",
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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAgElEQVQ4je2UQQ6AIAwE59B/2Z+BP6sv0wuoKRKMcDDRvUHYYdmECuuqgPJQkZlIyEuTBAtVRwPmJU+T1STnW+KNoIqhLABMWPIdfvGHrVGnoTvQKzIjd1KVxlAkyxrfYY/ZmIqKOoFa7L3ryT/wK0D//7uAeVINA15JIA21MbIN3PYezd+5cjgAAAAASUVORK5CYII=",
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     "label": "Silurian pyroxenites in granulites",
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    {
     "label": "Early Proterozoic metasediments",
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    {
     "label": "Early Proterozoic basic metavolcanics",
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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAOklEQVQ4je3MQREAIAwDwctMhVUAnkBanZUnCOgzK2BjnZNAMqMCSLr3SCcRI9HHoUOHDh2+sJCmvrqY+QcevbZ8RQAAAABJRU5ErkJggg==",
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    {
     "label": "Early Proterozoic metasediments",
     "url": "cd342ff4e877a03910d0c3a0cb2b25a5",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAPklEQVQ4je3MQREAIAhFwSdDMALYSaORDD05YwCOfwOs70lgBB2KdIw4h9XxDQPviH4KFSpUqPCFRQ5r2oq83MoJnhYtE+EAAAAASUVORK5CYII=",
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    {
     "label": "Early Proterozoic acid metavolcanics",
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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQUlEQVQ4je3MMREAIQxFwUcmwuLs8IKR9HgKVDeDgJR/BazPtQMj6FCkY8SBr+MbBt4RvRQqVKhQ4R8WOaxpK/ICDf4JwbN4N7MAAAAASUVORK5CYII=",
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    {
     "label": "Archaean acid metavolcanics",
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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAM0lEQVQ4jWP5/5/BgYGBwYGBOuAAC9SweioZyMBCLYNGDRw1cNTAUQNHDcQ08AAVzTsAAAXCBc4lo9okAAAAAElFTkSuQmCC",
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    {
     "label": "Early Proterozoic, high grade supracrustal units",
     "url": "cd0ca3349e4b144b3b0af89c15c50fdc",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAPUlEQVQ4je3MMREAIAwEwZufCIsAPGEtygINBQJS/grYWIcUJAMaKgR5YE+EAmIi+jl06NChwxc2lIayhroFIwkcVUV8egAAAABJRU5ErkJggg==",
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    {
     "label": "Late Archaean supracrustal rocks",
     "url": "65c105c68b74b61293fa78c1f21b3559",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMklEQVQ4je3MIQEAMAwDwQcRVmeTtkgbKRsNzAk4cRlgyLA2O6EQpaKGDRs2bPiHDn5+JB0Ej0IIh5MAAAAASUVORK5CYII=",
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     "groupId": "0",
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    {
     "label": "Early Archaean supracrustal sequence",
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