Assuming infill grade control drilling verifies Jericho is economic to mine I am guessing the following steps would be taken :
Looks like they are stoping out Matilda in a retreat method , from the diagram .
So maybe they will finish stoping out matilda before going to Jericho ?
Once Matilda is stoped out they could then extend the bottom level through to Jericho , and if they use that as a drive for removing ore from jericho I am guessing they may want to widen it from say 4 meters to 5-5.5 meters , so wide enough for a truck , and also for temporary ventilation.
Lets say a TB Jumbo does a leasurely 250 meters of level development in a month they could be into taking low grade development ore out in 6 months time from the bottom level extension into Jericho
Guessing they would want to put in 3 or 4 levels of say 300 meters in length so say 1600 meters (inc crosscuts/ loading bays ) of development ore ( cc 150 K tonnes ) over 6 months so 6 months to start and 6 months development to complete so a year before they start taking out high grade stoping ore ?
A paste plant would be nice to have with bottom up mining that they can do now
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