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Editing 40d:Exploratory mining
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::[[Iron]] has 3 ores: [[hematite]], [[limonite]], and [[magnetite]]. Looking at those articles, we find that magnetite is easy - it's a [[large cluster]] (about 20x40!), centered in an area block of [[sedimentary]] layer stone - check that article to see what kinds of stone layers are "sedimentary". If you have area blocks of sedimentary layers, center-punch a single shafts down through them and see. Limonite is also found in sedimentary, but in veins - this will take some exploration through the entire layer, but because we are looking for veins we don't have to reveal everything, not even close. Hematite is found in sedimentary as well, but also in [[Igneous extrusive]] layers - so that's another category of stone to check. | ::[[Iron]] has 3 ores: [[hematite]], [[limonite]], and [[magnetite]]. Looking at those articles, we find that magnetite is easy - it's a [[large cluster]] (about 20x40!), centered in an area block of [[sedimentary]] layer stone - check that article to see what kinds of stone layers are "sedimentary". If you have area blocks of sedimentary layers, center-punch a single shafts down through them and see. Limonite is also found in sedimentary, but in veins - this will take some exploration through the entire layer, but because we are looking for veins we don't have to reveal everything, not even close. Hematite is found in sedimentary as well, but also in [[Igneous extrusive]] layers - so that's another category of stone to check. | ||
− | Not all layers contain ''every'' ore they might contain, but ''if'' they do, that's where you'll find it. If you have none of the necessary layers, there is ''no chance'' you will find veins of that ore. You don't find iron ore in [[metamorphic]] layers unless it's extending from a different, nearby type - it just isn't there, period. | + | Not all layers contain ''every'' ore they might contain, but ''if'' they do, that's where you'll find it. If you have none of the necessary layers, there is ''no chance'' you will find veins of that ore. You don't find iron ore in [[metamorphic]] layers unless it's extending from a different, nearby type - it just isn't there, period. |
(This general approach is also used to determine "where to mine next?", even if you ''aren't'' looking for anything specific. Knowing that [[granite]] or [[gabbro]] has a better chance to pay off better than [[diorite]], and not to bother with the blocks with large clusters, gets your miners to the motherload that much faster.) | (This general approach is also used to determine "where to mine next?", even if you ''aren't'' looking for anything specific. Knowing that [[granite]] or [[gabbro]] has a better chance to pay off better than [[diorite]], and not to bother with the blocks with large clusters, gets your miners to the motherload that much faster.) |