Hopefully I can ask this question w/o too much confusion. The example I am
about to give may not be practical, but the answer should help me understand
db and log backups a little better.

Scenario:

Full db backup performed 3 times in a day - morning, afternoon, and evening
(T1, T2, T3 respectively)

Log backup performed in morning (T1) and evening (T3) immediately after the
morning full db backups (no afternoon (T2) log backup)

Then server db drive fails after the evening db and log backups
The evening full backup is unrestorable (bad tape)
The evening log backup is good (stored on another device).

Could I restore the db to the point of failure using the afternoon full db
backup (T2) and the evening log backup (T3)?

db: T1------T2------T3
log: T1---------------T3

In other words, when restoring the evening log backup, against the afternoon
full db backup, would the restore process read through the evening log backup
to find the transactions begining at T2, or does the log being restored need
to be from a backup that occurs after the full backup was created?

My "guess" is that the restore would read through the T3 log and apply the
transactions that began after the T2 full db backup.