AFTER TKOF AN A320 CREW WITH ECAM WARNINGS 'LG SHOCK ABSORBER' AND 'LG DOORS NOT CLOSED' DECLARED AN EMER AND RETURNED TO LAND.

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THE EVENT OCCURRED BECAUSE OF A LNDG GEAR MALFUNCTION. AFTER TAKING OFF; WE HAD AN ECAM WARNING AFTER WE RAISED THE LNDG GEAR: LNDG GEAR SHOCK ABSORBER AND LNDG GEAR DOORS NOT CLOSED. THE NOSE GEAR INDICATION ABOVE THE LNDG GEAR HANDLE WAS SHOWING RED. WE FOLLOWED THE ECAM; WHICH CALLED FOR CYCLING THE LNDG GEAR HANDLE. ONCE THE GEAR WAS 'DOWN AND 3 GREEN' (NO RED INDICATIONS REMAINED); WE NOTICED THERE WAS STILL AN ECAM MESSAGE 'LG NOT UPLOCKED.' BASED UPON THIS REMAINING MESSAGE; I ELECTED NOT TO RAISE THE GEAR AGAIN AS THERE WAS A MINOR QUESTION NOW ABOUT THE LNDG GEAR SYS. I WOULD RATHER HAVE A SOLID '3 GREEN' INDICATION THAN TRY AND RAISE THE GEAR AND POSSIBLY CREATE FURTHER PROBS. I CONTINUED FLYING AND TOOK OVER ATC RADIO COMS WHILE THE FO CALLED COMPANY MAINT. WE DECIDED TO RETURN TO THE FIELD. I DECLARED AN EMER WITH ATC; AND HAD THEM ROLL ALL AVAILABLE EMER EQUIP. BASED UPON OUR CONVERSATIONS WITH MAINT; THE FO AND I DECIDED THE LNDG GEAR WAS SAFE. THE FO BRIEFED THE FLT ATTENDANTS FOR A PRECAUTIONARY LNDG AND ADVISED COMPANY WE WERE DECLARING AN EMER. WE CONSULTED THE QRH AND COMPLETED THE PRECAUTIONARY LNDG CHKLIST. WE WERE VECTORED TO RWY; AND MADE AN UNEVENTFUL LNDG. WE HAD THE FIRE TRUCKS INSPECT THE ACFT AFTER WE WERE ON THE TXWY; AND THEY RPTED NOTHING ABNORMAL. ECAM MESSAGES; GREAT WIND NOISE UPON INITIAL GEAR RETRACTION; INCREASED HEART-BEAT RATE (NOT SCIENTIFICALLY OR MEDICALLY MEASURED). NO EARTH-SHAKING SUGGESTIONS; JUST THAT I COULD HAVE DONE A FLY-BY TO ENSURE NOTHING WAS WRONG WITH THE LNDG GEAR. I ELECTED NOT TO BECAUSE WE HAD GOOD LNDG GEAR INDICATIONS; AND I FELT A LOW PASS AT NIGHT (WHICH I HAVE NO EXPERIENCE IN) MIGHT JUST PROVIDE MORE OPPORTUNITY FOR ERROR. IN ADDITION; WITH CONCURRENCE FROM MAINT; I FELT THAT THE 'LG NOT UPLOCKED' ECAM MESSAGE WAS SPURIOUS AS WE HAD 3 MECHANICAL 'DOWN; 3 GREEN' INDICATIONS CONFIRMING THE GEAR IN NORMAL POS.