Results 81 to 90 of about 25,970 (222)

Paleocene orthophragminids from the Lakadong Limestone, Mawmluh Quarry section, Meghalaya (Shillong, NE India). Implications for the regional geology and paleobiogeography [PDF]

open access: yes, 2018
The late Paleocene orthophragminids, hitherto poorly known from the Himalayan foreland basins, are studied from the Lakadong Limestone in Meghalaya, northeastern India, in order to establish a systematic, biostratigraphic, and paleobiogeographical ...
Barattolo, Filippo   +6 more
core   +1 more source

Bioactive effect of cyanobacteria and calcareous algae mixture in bioassays and on potato growth and yield

open access: yesPesquisa Agropecuária Tropical
The growth-promoting effect of the micronized calcareous algae Lithothamnion sp. is related to the presence of humic acid and its bioactive auxin-like effect, characteristic of humic substances, whereas the plant growth-promoting effect of the microalgae
Juliana de Oliveira Amatussi   +4 more
doaj   +1 more source

Stratigraphic columns and correlations for the Late Eocene - Oligocene Te Kuiti Group, central-western North Island, New Zealand [PDF]

open access: yes, 2008
This report presents a compilation of stratigraphic columns for geological sections and outcrops of Late Eocene – Oligocene Te Kuiti Group units in central-western parts of North Island, New Zealand, between Port Waikato and Awakino.
Kamp, Peter J.J.   +2 more
core   +1 more source

Census Estimates of Algal and Epiphytic Carbonate Production Highlight Tropical Seagrass Meadows as Sediment Production Hotspots

open access: yesFrontiers in Marine Science, 2019
Tropical shelf, platform and reef-lagoon systems are dominated by calcium carbonate (CaCO3) sediments. However, data on habitat-specific CaCO3 sediment production rates by different sediment producing taxa are sparse, limiting understanding of where and ...
Chris T. Perry   +3 more
doaj   +1 more source

Field trip guide to Oligocene Limestones and Caves in the Waitomo District [PDF]

open access: yes, 2013
The field guide runs from Hamilton to Waitomo to Te Anga and return in limestone-dominated country developed in transgressive sedimentary deposits of the Oligocene Te Kuiti Group – a world class example of a temperate shelf carbonate depositional system.
Hendy, Chris H., Nelson, Campbell S.
core   +1 more source

Experiments using an artificial stream to investigate the seasonal growth of chalk-stream algae [PDF]

open access: yes, 1983
Research into the production ecology of chalk streams using a large artificial recirculating stream is described. Physical chemical processes including calcium and inorganic phosphate levels, and exchange of gaseous carbon dioxide in both a simple closed
Casey, H., Marker, A.F.H.
core  

Underwater optical metrology for precision monitoring of marine habitats: the MANATEE project [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Marine habitats are subject to monitoring activities to assess the impact of climate change, as required by EU and national directives. Coralligenous reefs are typical Mediterranean underwater seascapes, which originate from the growth of calcareous ...
E. Nocerino   +13 more
doaj   +1 more source

Freshwater biology and water supply in Britain [PDF]

open access: yes, 1946
This paper is designed to give a general account of freshwater biology as it bears on waterworks practice. Most water that is used for consumption will commonly go through a storage reservoir.
Gardiner, A.C.   +2 more
core  

Petrologic evidence for earliest Miocene tectonic mobility on eastern Taranaki Basin margin [PDF]

open access: yes, 2006
At Gibsons Beach on the west coast of central North Island, the earliest Miocene (Waitakian) Otorohanga Limestone, the top-most formation in the Te Kuiti Group, is unconformably overlain on an undulating, locally channelised erosion surface by the Early ...
Hood, Steven D.   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy