Mikhail Lavrov Mikhail Lavrov Mikhail Andrianovich Lavrov () (1799–1882) was a Russian rear-admiral and Arctic explorer. Mikhail Lavrov was born on 13 September 1799 in the city of Arkhangelsk. He graduated from Cadets Corps in Saint Petersburg and served at the Baltic Fleet. He participated in the voyage of the cargo ship "Mezen" from Kronstadt to Arkhangelsk and back in 1819–1820. In 1821–1824, in the rank of senior officer, he participated in the expedition of Fyodor Litke on board of the brig "Novaya Zemlya", making description of coast line of Murmansk and Novaya Zemlya archipelago. In 1825–1827, he made a round-the-world voyage
Baltica for example, the curved margin north of the Urals running parallel to Novaya Zemlya was probably deformed during the eruption of the End-Permian Siberian Traps. Baltica's western margin is the Caledonide orogen which stretches northward from the Scandinavian Mountains across Barents Sea to Svalbard. Its eastern margin is the Timanide orogen which stretches north to the Novaya Zemlya archipelago. The extent of the Proterozoic continent are defined by the Iapetus Suture to the west; the Trollfjorden-Komagelva Fault Zone in the north; the Variscan-Hercynian suture to the south; the Tornquist Zone to the southwest; and the Ural Mountains to the east.