Hydrothermal silica infiltrated depositing sediments (and, in places, deformed them) preserving the microbe-sediment systems in situ and the microbial biosignatures in various states of conservation, from pristine to degraded, prior to silicification (cf. Guido et al., 2010; Westall et al., 2015).
This careful treatment of the Haraldskær Woman's remains explains the excellent state of conservation of the corpse; conversely, Tollund Man, a later discovery, was not properly conserved and most of the body has been lost, leaving only the head as original remains in his display.
They are also typically in a delicate state of conservation.
State of Conservation reports, which are addressed to the World Heritage Committee, help it implement new conservation actions.
The results of cleaning "reveal the excellent state of conservation of the pictorial material and the artistic genius of Leonardo da Vinci, comforting us in the choices made," he said.
The Spanish authorities have been asked to submit an updated report on the state of conservation in the park by 1 February 2014.
Badman told the Guardian the IUCN would also decide, in the first few months of 2017, whether or not a new state of conservation report was needed, given the damage to the reef.
"Recovering a portrait of this size and in this state of conservation in the very heart of the city is really extraordinary," Eugenio La Rocca, the superintendent of Rome's artifacts, said.
Told in three voices – an elephant, a poacher and a film-maker – the book delves into the personal histories of the characters to give a panoramic view of the state of conservation in India.
"Seismic safety has to become a criterion for all interventions," said Ms. Moro, who coordinates a database (www.benitutelati.it) of the state of conservation and the seismic risk to individual cultural buildings.
Little illustrates the dire and perverse state of conservation policy in this country better than the report published by the National Trust a few days before the inspiring meetings I've mentioned.
