It's a sea of red Monday as Mining heads a widespread sell-off.Lonmin has lost over 7% after shutting down its Number One furnace. The platinum miner's initial estimate is that a full repair could take around 30 daysRivals joined the retreat as metal prices tanked. Rio Tinto, Xstrata, Eurasian Natural Resources and Vedanta Resources are nursing heavy losses.Industrial Metals is also weaker. Steel products maker Acertec has plunged by a quarter a few weeks after flagging plans to delist from AIM.A drop at Oil Equipment Services & Distribution accompanied a dip in oil prices from over $72 a barrel. John Wood Group and Petrofac are easier.Bottom performing sectors so far todayMining 14,985.28 -3.55%Forestry & Paper 2,361.62 -3.41%General Industrials 1,651.74 -2.66%Industrial Metals 4,595.42 -2.45%Oil Equipment Services & Distribution 12,653.07 -2.27%