It's interesting that you separate the two, a lot of people think that the Credit crunch and the recession are the same thing, but you have correctly identified a difference.
The Credit Crunch is a result of badly sold debt - ie money lent to those who would not be able to repay - the lenders assumed that the collateral (homes) could be re-sold to pay off the loans (repossesed) in the meantime, they sold the debts to some major banks who just lapped it up without checking (hard to believe but oh sooo true..).
http://www.thecreditcruncher.com/2008/06…
This had reduced the banks reserves of available credit to fuel the economy as a whole.
this has coincided with recession where a nation's Gross Domestic Product declines for two straight quarters - admittedly only the Irish Republic has so far declared a recession, but the rest of us will follow suit shortly...!
http://www.thecreditcruncher.com/2008/09…
The recession is an indicator of the slow-down of economic activity which is a result of people spending less, this causes jobs to be lost and therefore even less money is spent spiraling the economy downwards.
Our collective governments are throwing (borrowed) money at the problem to try to stimulate growth, my fear is that this is a MASSIVE gamble - the politicians cannot know that this will work, but they ARE willing to commit our money to it.