Metamorphic rocks arise from the transformation of existing rock types, in a process called metamorphism, which means change in form. The original rock (protolith) is subjected to heat (temperatures greater than 150 to 200 Â°C) and pressure (1500 bars), causing profound physical and/or chemical change.extures are separated into foliated and non-foliated categories. Foliated rock is a product of differential stress that deforms the rock in one plane, sometimes creating a plane of cleavage. For example, slate is a foliated metamorphic rock, originating from shale.
Thereâs no time limit for how long the period of consultation should be, but the minimum is: 1  20 to 99 redundancies-the consultation must start at least 30 days before any dismissals take effect. 2  100 or more redundancies-the consultation must start at least 45 days before any dismissals take effect.
In one study in the UK, average consultation lengths were 8 minutes. Patients with psychosocial problems were given 1 minute longer on average and this was sufficient to improve quality of care. Patients continue to express dissatisfaction with the time spent with their GP.uch of this work is very much 'of it's time' and it is clear that analysis of the consultation has evolved and will continue to evolve. Notable contributions to the literature on understanding and analysing the consultation include: 1  1957: Michael Balint's book 'The doctor, the patient and his illness' .