Polar Quest by Alex Archer (2009) Gold Eagle

In which, our heroine, Annja Creed, is picked-up by government agents and sent to Antarctica on a dig for some unexplained artifacts of metal unlike anything else on Earth.  Once there, she’ll be trapped until the weather allows exit from the continent.  But as soon as she lands, someone tries to ambush her.  And walking from the tavern, bundled-up for the weather, someone knocks her over and then tries to run her over with a slow moving vehicle while she’s trapped in her clothing like a turtle on its back.  Then Garin, one of the men who is as old as the sword she inherited from Joan of Arc appears as a Major and someone booby traps her laptop.