Awen, carbon 14 only work on samples younger than 50'000 years because by then theres no carbon14 left in them. you know how C14 dating works dont you?
But lets just say eg. ice cores, C14 and dendrochronology are all wrong... can you explain why they are wrong by about the same amount? that seem like quite an odd coincidense.
there is something like 50 different dating techniques, and your description is very lacking even for dating techniques that rely on the relative abundance of certain isotopes, for example, it never touch fission track dating.
But lets talk about specifics, and since we are talking about dinosauers: Why do you think rubidium-strontium dating is wrong? please try to give details. if you want to cite an yet undiscovered physical phenomena, please give details of what its actually supposed to *do* that affect RS dating, and if there is any evidence that indicate such a phenomona exist.
In your critisism, notice that scientists use words like "self-checking" and "self-correcting" about RS dating.. i believe Proverbs 18:13 is relevant in that respect.