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     "values": [
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     "label": "Ordovizium",
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     "label": "Kambrium",
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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAANUlEQVQ4jWNpamr6z0BFwMLAwMDwV+4KVQxjfqQDMZCaYNTAUQNHDRw1cNRAJAOZH+lQzUAA9sAG52HxmS4AAAAASUVORK5CYII=",
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     "label": "Präkambrium",
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     "groupId": "0",
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     "values": [
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    {
     "label": "Känozoische Vulkanite",
     "url": "791c2f09107de3d5334f67b97291d606",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAq0lEQVQ4ja2UMQ6EIBAAp6Cz80c+wW9YUJjY+QYLC7/jj+ys7woDCS5wB+yW42YkTNRYaz8A/WG5pp33xHh/WIDovnEL8z2Ih1t3Ch5jjl/TjtGSzffAuozPCTVkbsz7HlpkQHjCVlkg1JB5oYZs605IVa6R+cr/RCnhP6OU8myUGp6MUsqzUWpkySi1MjfiW26RCWGrLBBqyLxQQ+Yrw/MrX5dRvi7GM7sAX3Y90fiCarQLAAAAAElFTkSuQmCC",
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     "groupId": "0",
     "height": 20,
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     "values": [
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    },
    {
     "label": "Paläozoische Vulkanite",
     "url": "5552b7f63f06c52ff4630c473416ee69",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAsElEQVQ4ja2UuxGDMBAFdxhlrsD9OHdOMQRXDLlzRzTjoQnsAHNY6IMl3YWr0+rzRnIi8gZYpKcbRo4V44v0ANF+tzVcnw/g4g2+bveA74yAd8OI22V++RPT7JfP03eHFjI98noPqSOVyeCww1aZJ7SQqdBClk25RqYp/xNKCT8NpZRnQ6nhyVBKedXTy8mSodTKtgrecossELbKPKGFTIUWMk0Z1q98nsLVYjzXC/ABTuTVJDYeg4UAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
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     "width": 20,
     "values": [
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     ]
    }
   ],
   "legendGroups": [
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}