Stratigraphy of a middle Miocene neotropical Lagerstätte (La Venta Site, Colombia) Author Mora-Rojas, Laura Author Cárdenas, Andrés Author Jaramillo, Carlos Author Silvestro, Daniele Author Bayona, Germán Author Zapata, Sebastián Author Moreno, Federico Author Silva, César Author Moreno-Bernal, Jorge W. text Geodiversitas 2023 2023-04-13 45 6 197 221 journal article 10.5252/geodiversitas2023v45a6 1638-9395 7841790 urn:lsid:zoobank.org:pub:AD31694E-DD43-495D-BBD3-549B463AF2D3

Table 2. — Continuation.

		Sedimentary		Equivalence
Basic facies Facies		structures		with detailed
code (sensu (sensu Miall		(sensu Miall	Interpretation	lithofacies	Meaning detailed	Interpretation detailed lithofacies
Miall 2006)	2006)	2006)	(sensu Miall 2006)	(this work)	lithofacies	(this work)
Sh*	Sand very fine to	Horizontal	Plane-bed flow	S_Ppl_uG_	Sandstone with planar parallel	Sand bars in channel floor or high
	coarse, may be	lamination	(critical flow)/or	CaNod	lamination,ungraded and calcareous	energy currents
	pebbly	parting or	lower flow velocities		nodules
		streaming	during the initial	(m)S(f-m)_Ppl	Muddy sandstone, fine to medium-	Suspension-load deposits in the flood
		lineation	movement of a sand		grained and planar parallel lamination	plain
			bed	S(f)_nG	Sandstone with fine grain-sized and	Sand bars in channel floor / current
					normal gradation	flows with energy decreasing
				S(f-vc)_Ppl	Very fine to coarse grained sandstone	Upper flow regime / or sand bars in the
					with planar parallel lamination. May	channel floor
					include intraclasts.
Sl	Sand, fine to	Low-angle	Scour fills,	(c)S_S_	Conglomeratic sandstone /or	Bar deposits (with lateral accretion) in
	coarse, may	(<15°) cross-	humpback or	Epsi_w-s	sandstone with epsilon stratification	the channel floor
	pebbly	beds	washed-out dunes,		and/or wedge-shaped structures
			antidunes
Sm	Sand, fine to	Massive, or	Sediment gravity-	S_ma_iG	Massive muddy sandstone inverse	Deposits of sediment gravity-flow /
	coarse	faint lamination flow deposits			grading	hyperconcentrated flows
				S_ma_uG	Massive sandstone ungraded	Deposits of sediment gravity-flow /
						hyperconcentrated flows
				(m)S_ma_uG	Massive muddy sandstone ungraded	Deposits of sediment gravity-flow /
					which may include calcareous nodules	hyperconcentrated flows
				S_ma_uG_	Massive sandstone (it may be muddy)	Deposits of sediment gravity-flow /
				CaNod	ungraded,with calcareous nodules	hyperconcentrated flow affected by soil
						formation processes
Sh-Fl*	Sand fine	Horizontal	Lower flow	(m)S_(Car)	Muddy sandstone fine-grained gray	Lower flow velocity,with intermittent
		lamination	velocities -	Fc-s_Ppl	color, with carbonaceous mudstone	supply of organic matter with signs
		parting - Fine	Overbank,		sheets and planar parallel lamination	of conditions related to reducing
		lamination	abandoned channel			environments
			or waning flood
			deposits
Fl	Sand, silt mud	Fine	Overbank,	Fc-s_Ppl	Mudstone with planar parallel	Sediments accumulation by suspension
		lamination,	abandoned channel,		lamination,it may have normal	in flood plains
		very small	or waning flood		gradation
		ripples	deposits
Fl	Sand, silt mud	Fine	Overbank,	(s)Fc-s_nG	Mudstone with normal gradation from	Sediments accumulation by suspension
		lamination,	abandoned channel,		very fine sand to mudstone	in flood plains affected by currents with
		very small	or waning flood			energy changes
		ripples	deposits	Fc-s_Ppl_nG	Mudstone with planar parallel	Sediments accumulation by suspension
					lamination and normal gradation	in flood plains affected by currents with
						energy changes
				(s)Fc-s_Ppl_	Sandy mudstone with planar parallel	Sediments accumulation by suspension
				nG	lamination and normal gradation	in flood plains affected by currents with
						energy changes
				Fc-s_CaNod	Mudstone with calcareous/ or	Sediments accumulation by suspension
					ferruginous nodules	in flood plains / affected by soil
						formation processes
				Fc-s_Ppl_var	Varicolored mudstone with planar	Sediments accumulation by suspension
					parallel lamination	in flood plains affected by soil formation
						processes
				(s)Fc-s_Ppl_	Sandy mudstone with planar parallel	Sediments accumulation by suspension
				var	lamination and varicolored	in flood plains / affected by soil
						formation processes
				(s)Fc-s_Ppl_	Sandy mudstone with planar parallel	Sediments accumulation by suspension
				nG_var	lamination,normal gradation (from light	in flood plains,affected by variations
					green sandy mudstone to varicolored	in the water table,which produces
					red claystone)	developed of soil horizons