Users Symbol Contributions

Biology symbols

• GMT symbols for Whale-watchers and marine biologists

These are symbols used to illustrate sightings of whales.

An Atlantic White-sided Whale	An Atlantic White-sided Whale (high)	An Atlantic White-sided Whale (low)
A Beluga whale	A Beluga whale (high)	A Beluga whale (low)
A Bottlenose Dolphin	A Bottlenose Dolphin (high)	A Bottlenose Dolphin (low)
A Bowhead Whale	A Bowhead Whale (high)	A Bowhead Whale (low)
A Burmeister’s Porpoise	A Burmeister’s Porpoise (high)	A Burmeister’s Porpoise (low)
A Common Dolphin	A Common Dolphin (high)	A Common Dolphin (low)
A Common Dolphin (mid-high)	A Common Dolphin (mid-low)	A Common Porpoise
A Common Porpoise (high)	A Common Porpoise (low)	A Cuvier’s Beaked Whale
A Cuvier’s Beaked Whale (high)	A Cuvier’s Beaked Whale (low)	A Fin Whale
A Fin Whale (high)	A Fin Whale (low)	A Gray Whale
A Gray Whale (high)	A Gray Whale (low)	One Humpback Whale Tail
One Humpback Whale Tail (low)	Two Humpback Whale Tails	Two Humpback Whale Tails (low)
A Jumpback tail	A Jumpback tail (high)	A Jumpback tail (low)
A Killer Whale	A Killer Whale (high)	A Killer Whale (low)
A Long-finned Pilot Whale	A Long-finned Pilot Whale (high)	A Long-finned Pilot Whale (low)
A Minke Whale	A Minke Whale (high)	A Minke Whale (low)
A Northern Right Whale	A Northern Right Whale (high)	A Northern Right Whale (low)
A Pigmy Sperm Whale	A Pigmy Sperm Whale (high)	A Pigmy Sperm Whale (low)
A Risso’s Dolphin	A Risso’s Dolphin (high)	A Risso’s Dolphin (low)
A Sei Whale	A Sei Whale (high)	A Sei Whale (low)
A Short-finned Pilot Whale	A Short-finned Pilot Whale (high)	A Short-finned Pilot Whale (low)
A Southern Right Whale	A Southern Right Whale (high)	A Southern Right Whale (low)
A Spectacled Porpoise	A Spectacled Porpoise (high)	A Spectacled Porpoise (low)
A Sperm Whale	A Sperm Whale (high)	A Sperm Whale (low)
A Sperm Whale Tail	A Sperm Whale Tail (high)	A Sperm Whale Tail (low)
A Southern Right Whale Dolphin	A Southern Right Whale Dolphin (high)	A Southern Right Whale Dolphin (low)
A Striped Dolphin	A Striped Dolphin (high)	A Striped Dolphin (low)
An Unidentified Beaked Whale	An Unidentified Beaked Whale (high)	An Unidentified Beaked Whale (low)
An Unidentified Dolphin	An Unidentified Dolphin (high)	An Unidentified Dolphin (low)
An Unidentified Whale	An Unidentified Whale (high)	An Unidentified Whale (low)

Structural geology symbols

• GMT geological symbols

These are symbols used in structural geology.

Strike, dip direction and dip of cleavage	Horizontal cleavage	Strike of vertical cleavage
Strike, dip direction and dip of foliation 2	Strike, dip direction and dip of foliation 3	Strike, dip direction and dip of foliation
Horizontal foliation	Strike of vertical foliation	Strike, dip direction and dip of joints
Horizontal joints	Strike of vertical joints	Trend and plunge of lineation 2
Trend and plunge of lineation 3	Trend and plunge of lineation	Horizontal lineation
Vertical lineation	Strike, dip direction and dip of beds	Strike and dip direction of gently dipping beds
Horizontal beds	Strike, dip direction and dip of overturned beds	Strike and dip direction of moderately dipping beds
Strike, dip direction and dip of bed with rake of lineation	Strike and dip direction of steeply dipping beds	Strike, dip direction and dip of crenulated or undulated beds
Strike of vertical beds

Miscellaneous symbols

These are general-purpose symbols you may find useful.

A pirate