Loughor Estuary, Bristol Channel, South Wales

Loughor Estuary, Bristol Channel, South Wales

Loughor Bay satellite image Tidal creeks dissect supratidal salt marsh, Loughor Estuary margin Reworked mixed mussel and cockle microbial mediated cement layers forming channel margin lags, Loughor Estuary Rippled intertidal sandflat with salinity tolerant cockle shells collecting in troughs, Loughor Estuary Channel margin tidal scour pits with flood tidal bar cusps Estuary channel bar flood and ebb tide complexes Mixed tidal flats behind estuary mouth barrier bar complex Oolithica Field seminar to Loughor Bay Estuary Falling stage microchannel cuts on the margin of a tidal creek, note tranverse rippled sands on base of the creek channel, Loughor Estuary High abundance, low diversity faunal assemblage consisting of cockle and mussel shells, Loughor Bay, S Wales Wave dominated beach backed by aeolian dune sandstones, Loughor Estuary

Field seminar examining modern day depositional environments in a tidal estuary and wave dominated shoreline, to develop analogues for subsurface reservoirs


The aims of this field seminar are to:

  • examine the features of a modern day tidal estuary and the adjacent wave dominated coastline

  • compare observation with published scientific data

  • better understand depositional facies and their relationships within a complex depositional setting.

Who Should Attend

This seminar will be of interest to geoscientists directly involved with exploration or development of clastic tidal dominated reservoirs.


The Loughor Estuary is an example of a river fed, meso to macro tidal estuary developed within a wave dominated coastline.  The field trip will compare published scientific studies and satellite imagery with on the ground observations to build a facies model for sand body distribution and connectivity.

Course Format

This seminar is mildly to moderately strenuous, involving three full days in the field. Time in the field is dependent on the tides at the time, with prolonged periods spent examining facies within the estuary at low tide.  Participants are encouraged to make their own field observations and to link these to published models.  Box cores and excavations will assist in determining sediment characteristics.

Course Details
  • Duration: 3 days

  • Proposed dates: to be arranged

  • Cost: By quotation, includes instruction, course manual, field transportation and 3 days full-board double-occupancy accommodation.

  • Clothing: Participants should be equipped for inclement weather and prepared for wading in sea water.  Safety helmets are not required.

  • Insurance: Participants should ensure that their employers liability insurance cover (including medical insurance) is in order, particularly for personal accident and loss or damage of equipment, as Oolithica Geoscience Ltd cannot accept responsibility for claims arising from this or any other field seminar.